一、国内外现状及研制的目的意义 当今世界各国的远洋拖网渔船都在采用网口部分为大网目的拖网和中层拖网作业,传统的耳环式浮子由于容易套挂大网目网衣,甚至造成破网事故。因此,有几个国家研制了一种新型的拖网属具————穿心球形塑料浮子,该浮子去掉传统浮子上的两个系结耳环,浮子纲从浮子中心通孔穿过,这样浮子可以绕浮子纲转动,有效地解决了大网目网衣套挂浮子的问题。现在世界上生产穿心浮 First, the status quo at home and abroad and the purpose of the research and development In all countries in the world today, the ocean trawlers are using part of the network port trawl trawlers and trawl trawlers for the large net, the traditional earrings float nets because of easy to hang nets, and even caused Breaking the net accident. Therefore, several countries have developed a new type of trawl - through-the-ball plastic float, the float to remove the two traditional knuckles on the earrings, floats through the center hole of the float through, so that the float You can rotate around the float outline, effectively solve the problem of large mesh nets hanging float. Now the world production heart floating