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Lack of engineering control to arrest accidental back-flow (Design).
防止意外回流缺乏工程控制(设计)。
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Mechanical engineering control foundation is an abstract technical basic course.
机械工程控制基础是一门比较抽象的技术基础课。
youdao
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Mechanical engineering control foundation is an abstract technical basic course.
机械工程控制基础是一门比较抽象的技术基础课。
youdao