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方形目网片是指网具在使用时各网目呈正方形状的网片,与缩结系数为0.707时的菱形方目有别(图1)。由于它具有网目扩张性好、对捕捞对象大小的选择性强、材料省、阻力小等优点,近年来已引起国内外渔捞工作者的兴趣。
Square mesh mesh refers to the use of mesh mesh was square mesh, and the contraction coefficient of 0.707 when the rhombic Fangmu purposes (Figure 1). Due to its advantages of good scalability, high selectivity on the size of fishing objects, low material cost and low resistance, it has aroused the interest of fishing workers at home and abroad in recent years.