河北省武强县农具研究所,学习外地经验,结合当地的具体情况,研制出一种能增大离心泵吸程的WN—SLB—8a型射流泵,通过测试,这种射流泵适合当地农村浇地使用,与一般离心泵结合,可以解决离心泵不能下卧,抽不上水的问题。这个县的机井, Wuqiang County, Hebei Province, Institute of Tools, learning field experience, combined with local conditions, developed a centrifugal pump to increase the suction WN-SLB-8a-type jet pump, tested by this jet pump for the local rural The use of irrigated land, combined with the general centrifugal pump, can solve the centrifugal pump can not be lying down, pumping the water problem. The county’s machine wells,