近几年来,我队在滨海地区进行水文地质勘探,这里含水层厚度大、层次多,为查清成、淡水分布及垂向变化规律,必须在钻孔内定深采取水样。目前市场上尚买不到定型的采水器,为了圆满地完成此项任务,我们对上海地质处研制的定深采水器加以修改制作。经使用证明,改制后的定深采水器性能可靠、制作简单、使用方便。可在直径不小 In recent years, our team has carried out hydrogeological exploration in the coastal area. Here, the aquifer has a large thickness and many layers. In order to check the distribution of freshwater and freshwater and the vertical change pattern, water samples must be taken deep inside the borehole. At present, there are still no fixed water collectors on the market. In order to accomplish this task satisfactorily, we have modified and manufactured the depth-measuring water filters developed by the Shanghai Geological Department. The use of the proof, after the restructuring of the depth of the water detector is reliable, simple production, easy to use. Can be small in diameter