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每个班次检查水管接头看是否有漏水现象。
Check the water pipe connector about leakage status in every shift.
youdao
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主要介绍了水管接头密封圈(水封)的开发研制过程。
The paper was about researching and developing water pipe joint ring.
youdao
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主要介绍了水管接头密封圈(水封)的开发研制过程。
The paper was about researching and developing water pipe joint ring.
youdao