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随着我国社会主义建设事业的蓬勃发展,在国民经济各部门中,开采地下水的管井越来越多。我们知道管井是由保护井壁稳定的井壁管及进水的滤水管(过滤器)组成,后者是管井的关键部份,它涉及到管井的出水效能、
With the vigorous development of China’s socialist construction, there are more and more wells for the extraction of groundwater in various sectors of the national economy. We know that the tube well is composed of a well wall tube that protects the wellbore wall and a water inlet filter (filter). The latter is a key part of the tube well. It involves the effluent efficiency of the tube well.