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我队在盐湖勘探中，为了解地下水对盐湖的补给量，设计了多组湖边抽水孔并留作长期观测。一般水样取自50米以上的含水层，水位在10～20米，水量0.3～0.8升/秒，为解决抽水下沉没管，自制了反正接头止水盘，完成抽水取样试验后，反回反正接头，取出沉没管，成功率达71％，可为国家节省大量管材，同时也加快了勘探速度，取得较好的效果，现将使用情况分述如下。
My team in the exploration of the Salt Lake, in order to understand the groundwater recharge of the Salt Lake, designed a group of lake pumping holes and left for long-term observation. General water samples taken from the aquifer above 50 meters, the water level of 10 to 20 meters, the water 0.3 to 0.8 liters / sec, in order to solve the sinking of the tube, self-made anyway, stop the water tray, after the completion of the pumping sampling test, back Anyway, the connector, remove the tube sank, the success rate of 71%, for the country to save a lot of pipe, but also speed up the exploration speed, and achieved good results, the use of the situation are described below.