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国家海洋局技术研究所研制的DDC5—1千米自返式底质取样管,是获取海底表面泥沙资料的仪器。回收取样管除在浮体内安装收发报机外,为了在夜间能够看清取样管浮体在海上的位置,浮体内还安装了闪光灯。由于玻璃打孔比较困难,用螺栓固定则影响浮体的密封性,一旦进水,电源受潮,发报机和闪光灯全不能工作,团而达不到回收的目的。为了圆
The DDC5-1 km self-supporting bottom sediment sampling tube developed by the State Oceanic Administration Institute of Technology is an instrument for obtaining the sediment data of the sea surface. Recycling sampling tube In addition to the transceiver installed in the floating body, in order to be able to see the sampling tube at night floating body at sea position, floating body also installed a flash. Due to the glass drilling more difficult, with bolts affect the buoyancy of the tightness, once the water, power damp, the transmitter and the flash can not work, the group can not achieve the purpose of recovery. To round