过程更改 Process change
工程更改 engineering change ; EWO ; ECN ; engineer change
工程更改申请 ECR ; engineering change request ; equioment change request
工程更改建议 engineering change proposal ; ECP ; ECP - EngineeringChangeProposal
工程更改日程表 engineering change schedule
工程更改通知 Engineering Change Notice ; ECN ; engineering change note
客户要求的工程更改 engineering change order
工程更改说明书 engineering change statement
工程更改请求 Engineering Change Request ; REA ; ECR
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