Engineering change management. To register EC No. , track status and record the document.

负责工程变更编号的发放与管理，工程变更的状态跟踪及文件存档；

youdao

Engineering change management. To register EC No. , track status and record the document.

负责工程变更编号的发放与管理，工程变更的状态跟踪及文件存档；

youdao