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多片式疏目拖网是根据目前国内各渔场资源衰竭,本着既保护资源,又增加捕捞产量而设计的一种新型网具。在试验过程中,通过广泛的调查、水槽试验和海上实拖试验,该网具采取了增大网目、缩短袖网长度、合理选取缩结系数和配纲系数等技术措施,网具结构合理,经生产实践验证,平均网次产量提高12.5％,产值提高20.3％,经济效益显著,目前该网已经推广到群众渔业生产中
Multi-slice sparsely-trawled net is based on the current depletion of domestic fisheries resources, in line with both the protection of resources, but also increase the production of fishing designed a new type of network. In the course of the experiment, through extensive investigations, flume tests and offshore towing tests, the nets adopted technical measures such as increasing nets, shortening the length of sleeves, reasonably selecting the coefficient of consolidation and coefficient of coordination, and the nets have reasonable structure , Verified by production practice, the average net output increased by 12.5%, the output value increased by 20.3%, significant economic benefits, the network has now been extended to the mass production of fisheries