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介绍了调压注水泵的结构、工作原理及主要技术参数。
The structure, operating principle and main technical parameters of the new pump are described.
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井底温度是注水泥工艺中的重要参数。
Temperature is an important factor in cementing technology.
youdao
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井底温度是注水泥工艺中的重要参数。
Temperature is an important factor in cementing technology.
youdao