By using the experimental device of soil moisture movement of single water storage pit and suctiongauge, 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。
2
A gauge measures the pressure of the suction.
有一个测量器来测量抽的压力。
3
Unscrew the nut from the service connection of suction line valve and connect the compound pressure gauge.