Start with the purpose of your project
Documents in the same industry can have different audiences, purposes and deadlines. Define the task before agreeing source material, staffing and review.
Establish the unit terminology baseline
For projects preparing process files and equipment enquiries in parallel, distinguish process units, utilities and packaged equipment first. Resolve shared names across disciplines without assuming that an abbreviation has the same meaning everywhere.
- Useful input
- Provide a unit overview, document register, equipment tags, enquiry files and agreed terms; identify supplier files supplied only as references.
- Work focus
- Connect process narratives and data sheets; check medium names, equipment functions and references, and raise individual queries about technical conflicts.
- Agreed output
- Agreed outputs may include discipline-based translations, tag-to-name mappings, an initial abbreviation list and clarification records.
Retain conditions and warning relationships
For teams organizing operating and maintenance files, establish which equipment each document covers. Distinguish process explanations, procedural requirements and supplier notes so that background information does not become a site instruction.
- Useful input
- Provide applicable manuals, configuration notes, agreed warning terminology, related figures and previous query responses.
- Work focus
- Review conditions, negation, exceptions, references and the actor responsible for an action; refer unclear meaning to the technical contact.
- Agreed output
- Outputs may include chapter-aligned translations, warning terminology and linguistic queries requiring technical review.
Trace the documents affected by revisions
For continuing updates from several suppliers, organize additions, replacements and retained content by document number and revision. Follow equipment name changes into schedules, captions and manual indexes.
- Useful input
- Provide old and new files, change notes, affected tags, earlier translations and the current handover register.
- Work focus
- Separate source changes from translation corrections; revisit shared terminology and references to prevent superseded names returning.
- Agreed output
- Agreed outputs may include incremental translations, revision comparisons and a handover register identifying outstanding related queries.
Different documents need different checks
Define translation, review, layout and supporting explanations from the actual file list. The following scopes can be combined as agreed; they are not an automatically included package.
Process narratives and flow documentation
Translate unit descriptions, process narratives and text in flow diagrams with reference to upstream and downstream relationships. Map short diagram labels to full names in the narrative, retaining drawing numbers and reference locations; agree graphical editing separately.
Review focus: Check stream names, inlet and outlet relationships, abbreviation expansions and diagram references without reconstructing missing process information.
Specifications and equipment data sheets
Retain the fields in specifications, equipment data sheets and attachments, distinguishing design conditions, operating information and supplier entries. Reuse repeated wording where appropriate while preserving each value, blank field and note.
Review focus: Check tags, units, material names, footnote markers and field alignment; never turn a blank into a zero.
Instrumentation and control descriptions
Translate instrument lists, functional descriptions and control narratives using agreed signal names and state terminology. Review similar sentences for different conditions and objects so that reused wording does not refer to the wrong equipment.
Review focus: Check conditional connectors, state changes, negation and identifiers; engineering personnel determine functional correctness.
Supplier technical clarifications
Handle enquiry attachments, technical deviation schedules and correspondence with questions linked to their answers. Record supplier-specific equipment names without extending an answer about one document into a conclusion about the entire unit.
Review focus: Check the question addressed, applicable files, qualifications and open items; distinguish proposals from confirmations.
Manuals and maintenance documentation
Translate equipment descriptions, maintenance chapters, fault descriptions and captions while retaining the source hierarchy. Interpret part names within the equipment configuration and distinguish symptoms, possible causes and source remedies without adding practical procedures.
Review focus: Check procedural references, applicable equipment, warning placement and part identifiers to avoid reuse across incompatible models.
Safety and material documentation
Agreed work may cover safety notices, material information and related tables, preserving headings, revisions and qualifications. Use client-approved names and references, and identify locations of source inconsistencies for the designated reviewer.
Review focus: Check substance names, warning force, conditions and references without adding hazard classifications or response conclusions.
Adapt the approach to the document’s use
Consider the subject, audience and relationship between files together, so that terms remain traceable across different documents.
Refining and petrochemical units
Process, equipment and instrument files share tags but serve different purposes. Build mappings by unit and discipline so the same object is traceable across narratives and schedules rather than merging names on the basis of short Chinese labels.
Utilities documentation
Utilities such as steam and water connect several units. Retain supplying and receiving parties, boundary names and referenced files, distinguishing whole-system names from branch names so interface descriptions agree with the narrative.
Packaged equipment documentation
Supplier manuals may use independent part names and identifiers. Connect package identifiers with project tags and retain searchable manufacturer terminology. Resolve configuration differences and document applicability before reusing translations.
Unit modification projects
Old and new names may coexist during modifications. Preserve source distinctions between existing, added and replacement items, using change records to update related names and clarify the version described. The project team assesses technical impact.
Languages, regions and review references
Include the source and target languages, destination and recipient. Supply approved terminology, prior translations, document conventions or required templates. The client’s designated specialist confirms questions of professional applicability.
Explore languages ↗Professional care in practical document details
These fictional Chinese–English examples illustrate review methods. They are not client originals, actual deliveries, professional findings or fixed translations.
设备表EQ-06中,泵P-204的名称沿用文件PD-12第B版。
ILLUSTRATIVE TRANSLATIONIn equipment schedule EQ-06, the name of pump P-204 follows document PD-12, Revision B.
What the reviewer checks
This fictional translation preserves the tag, schedule number and revision as a naming reference; it implies no pump configuration or performance.
本文件中,“成套单元”仅指附件A列出的设备组合。
ILLUSTRATIVE TRANSLATIONIn this document, “packaged unit” refers only to the equipment combination listed in Appendix A.
What the reviewer checks
This fictional example retains both “only” and “in this document”, keeping the definition tied to Appendix A rather than other systems.
说明NT-03第C版替换第B版中的设备名称表;其余章节未在本次修订中变更。
ILLUSTRATIVE TRANSLATIONNote NT-03, Revision C, replaces the equipment name table in Revision B; the remaining chapters are unchanged in this revision.
What the reviewer checks
This fictional example limits replacement to the name table. It does not declare the whole document withdrawn or determine its formal effect.
Actual work follows the complete source, approved terminology and specialist feedback. Queries are documented rather than resolved by inventing missing facts.
From linguistic review to final-file checks
Agree review coverage for the purpose and risk of this set of documents, distinguishing language issues, source queries and matters needing specialist confirmation.
Check tags together with names
Review each tag with its equipment name and unit, paying attention to similar letters and digits. Consistent wording must preserve equipment distinctions; record locations where one source tag has conflicting names.
Review values and units separately
Check values, units, subscripts, superscripts and footnotes in tables and prose. Preserve different source units without converting them for stylistic consistency; agree responsibility and references if conversion is requested.
Reread conditions and negation
Read exceptions, restrictions and unless clauses with their context. Establish whether a qualification applies to equipment, a state or the whole passage, ensuring that shorter sentences do not change its scope.
Make references traceable
Check document numbers, revisions, sections and figure references in the delivery format. Retain references to unavailable attachments and record the missing context rather than substituting a similar file.
Keep queries traceable
The project manager links queries to responses. The client’s specialist confirms factual, business or technical decisions; linguists apply those decisions and check related affected content.
Translation covers faithful expression, terminology, completeness and agreed document checks. Unit design, process judgments, equipment suitability and safety decisions belong to the client and designated specialists. Technical uncertainties are communicated through queries; linguistic review does not replace engineering review. Work and deliverables are provided within the agreed project scope.
A workflow from receipt to a usable file set
Agree inputs, approvers and outputs at each step. Phased delivery and source changes continue to use the same file identifiers and revision baseline.
- 01
Define the unit and purpose
Agree units, disciplines, language direction and readers. Distinguish procurement, internal review and operating documentation, assigning translation, drawing-text work and technical review within the scope.
- 02
Map document relationships
Register document numbers, revisions and tags; agree reference priority. Identify scan quality, missing pages and attachments, resolving gaps that affect understanding first.
- 03
Agree representative wording
Select representative process passages, data sheets and warnings to agree names, abbreviations and table treatment, giving disciplines a shared basis before full translation.
- 04
Translate by discipline and raise queries
Work according to file dependencies, locating queries by document, page and sentence. Record the applicability of client answers and propagate decisions affecting several files.
- 05
Review language and files
Review meaning and terminology, then tags, values, figures and revisions. Keep technically ambiguous items open until the designated technical contact confirms their treatment.
- 06
Hand over batches and maintain updates
Attach a file register, language versions and query status to each batch. Use confirmed translations as the baseline for additions and revisions, revisiting related files affected by changes.
A delivery list your team can work from
Agree outputs, review levels, formats and revision arrangements at the outset. Supporting records are scoped rather than assumed to be included in every service.
Translations arranged by document number
Deliver editable or reading files as agreed, preserving document numbers, revisions and sections; agree bilingual presentation for tables and captions in advance.
Equipment tags and terminology
A reference may cover equipment, streams, materials and abbreviations, recording sources and unit applicability and separating confirmed names from open entries.
Clarification queries and responses
Link queries, responses and resolutions to file locations, retaining decisions on cross-discipline conflicts so clients can distinguish resolved language issues from technical questions.
Revisions and affected references
List additions, replacements and retained content as agreed, together with files affected by naming or revision changes, supporting continued maintenance of the document register.
Delivery checklist
Summarize formats, completeness, figure references and open items. Include layout work or specific checks only where agreed, making batch coverage clear to recipients.
Assign responsibilities around the task
Project manager
Coordinates scope, batches, timing and queries, maintaining the delivery register and revision history.
Translator
Assigned after assessment of language direction, field and files, working to approved terminology and references.
Review and file checks
Reviews meaning, completeness, key information and file format within the agreed scope, recording matters for client confirmation.
Client specialist reviewer
Confirms source facts, professional applicability and disputed terms, consolidating feedback and owning business decisions.
Experience supported by records and a clear method
Plan the service around the actual documents and required outputs. Existing records describe participation, not a promise based on a client’s business results.

Technical translation for Zhenhai’s ethylene expansion
The engagement relates to translation for the ethylene component of the Zhenhai refinery expansion. Sinopec’s procurement platform published a candidate-award notice for Lot 2. SENIOR TRANS participated in related language-service work; the listed bidder roles do not establish SENIOR TRANS’s contractual role.
Read the project background and scope ↗ISO 9001:2015
Quality-management certification for translation services, excluding branches, with briefing, review and delivery checks defined in the project scope.
ISO/IEC 27001:2022
Information-security management certification associated with translation services, excluding branches.
TAC institutional membership
Staffing is assessed by language, document type and scope, with specialist-review and linguistic responsibilities agreed before work begins.
Agree access, transfer, tool use and retention before confidential work begins. Confidential files are not entered into external AI or other online services without prior agreement. Read about confidentiality · Credentials and scope
Scope the work before price and timing
Review files before agreeing inclusions and separate charges, distinguishing language work, client review, additional services and any shipping.
Discipline and text scope
Units, disciplines, language direction and document dependencies affect workload. Identify tag and technical differences before assessing reuse; repeated layout does not mean identical content.
Sources, diagrams and tables
Scan recognition, complex data sheets, drawing-text extraction and bilingual layout can add work. Assess translation, format reconstruction and graphical support separately and agree outputs after reviewing files.
Changes and review windows
Batch schedules depend on source stability, technical responses and client review. Assess workload and timing before confirming adjustments for added units, changed baselines or wider cross-file review.
A clear brief makes assessment more useful
Start with a non-confidential description or redacted sample, then agree how to transfer complete files. This list helps organize the key details; an initial discussion is also welcome if material is incomplete.
- Units and disciplinesDescribe process units, utility systems and discipline boundaries, with a short background and the design, procurement or maintenance purpose of this batch.
- Document and revision registerSupply complete sources, attachments and applicable revisions, distinguishing inputs from references; scans should show tables, footnotes and tags clearly.
- Naming and abbreviation referencesProvide equipment lists, agreed abbreviations, established translations and supplier names, noting duplicate names or separate naming systems.
- Document and graphical formatsIdentify editable sources, drawing text, embedded images and output formats, including codes to retain and content that cannot be edited.
- Technical query contactsIdentify discipline contacts and the final language approver, feedback methods and review windows, including who coordinates cross-discipline questions.
- Batches and document permissionsSpecify batch order, confidentiality, transfer and tool permissions; agree traceable revision handovers when source files continue to change.
Questions before work begins
Can drawings and manuals be translated in batches?
Batches can be scoped by unit or discipline after establishing shared tags and terminology. Record the reference revisions used in each batch. If later files change earlier understanding, agree which completed files need revisiting to keep naming aligned.
How are blank data-sheet fields handled?
Preserve distinctions between blank fields, dashes and entries marked not applicable; do not fill blanks with values or technical conclusions. Locate illegible text for client confirmation. The document owner decides whether technical data should be completed.
What if suppliers use different terminology?
First establish whether the terms refer to the same object, then map project and supplier names. Retain original names where useful for searching. Similar wording alone does not justify merging equipment or signals; technical contacts resolve functional differences.
Can existing translations receive review only?
Provide sources, translations and revision notes to assess alignment and issue patterns. Agree whether review includes cross-file terminology, tag checks and layout. Determine separately how to handle translations that do not match the current source.
Will source inconsistencies be corrected directly?
Technical information is not rewritten on linguistic judgment alone. Queries identify conflicting passages, related files and translation implications. Apply the project team’s response with its document and revision scope recorded.
Does translation include process safety review?
Linguistic review checks faithful retention of conditions, warnings and technical information; it does not assess process safety or suitability. Clients identify responsible engineering or safety reviewers where needed, and the translation team can organize language queries for them.


