test pipe 水文地质钻探中，为了在抽水试验的同时能够观测井内水位的升降情况，必须在井管内或井管外设置一套小直径水管。这种水管称测水管。 其内径大小以能通过水位器测头为准，一般为19毫米(3/4英寸)或22毫米(7/8英寸)。
介绍了城市地下给水管线竣工测量工作的必要性和重要性，阐述了测量的内容及施测方法，提出了一些建议。
This paper introduces the necessity and importance of final survey of underground water supply line, expounds the contents of and methods for the surveying, and advances some suggestions.
对水轮机模型，测取了从直锥段进口至尾水管出口8个截面共26个测点在6个稳定运行工况下的水压力脉动数据。
In the experimental study, the pressure surge data are acquired at 26 points from the taper pipe intake to the draft tube exit distributing at 8 sections under 6 stable operating conditions.
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