By using the experimental device of soil moisture movement of single water storage pit and suction gauge, irrigation experiment of single water storage pit are conducted.
利用蓄水单坑土壤水分运动试验装置结合负压计进行蓄水单坑灌水试验。
A gauge measures the pressure of the suction.
有一个测量器来测量抽的压力。
Unscrew the nut from the service connection of suction line valve and connect the compound pressure gauge.
将真空泵连于复合压力表，打开复合压力表和真空泵对室内机和连接管抽真空。
This paper describes how to increase the productivity effect of cutter-suction dredgers in the fields of cutting force, dredging pump, gauge pile and exhaust pipe.
本文从绞刀、泥泵、定位桩装置及排泥管等四个方面，论述了提高绞吸式挖泥船生产效率的途径。
Pump could not suction water. The fingers of pressure gauge and vacuum gauge swing acutely.
水泵不吸水，压力表及真空表的指针在剧烈摆动。
Pump could not suction water. The fingers of pressure gauge and vacuum gauge swing acutely.
水泵不吸水，压力表及真空表的指针在剧烈摆动。
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