Drive tension is caused by resistance of driving force and cutting resistance and frictional resistance and it is not the same value at different places.
锯链的驱动张力是驱动力与切削阻力及摩擦阻力相对抗而产生的，在不同位置其大小不等。
It has simple structure, low cost, long service life, fast cutting speed, less cutting resistance and low power consumption and it is suitable for use in woodland.
其结构简单、成本较低、使用寿命较长，适合于在林地内使用，且切削速度快、阻力小、耗功少。
Dividing blade is mainly used for paper, film, gold, silver foil, aluminum, copper films, tapes and other items for dividing, asking for the least cutting resistance, the largest wear resistance.
分切刀片主要用于纸张、薄膜、金、银箔、铝箔、铜箔、磁带等物品的分切，要求刀片切断阻力最小，耐磨损性最大。
Reduction of contact area between cohesive soil and the surface of dredging tools is able to decrease soil adhesion and cutting resistance.
降低粘性土壤对刀齿表面接触面积可以减小土壤对刀齿的粘附和降低刀齿切削土壤的阻力。
According to coal breakout feature, the author has studied the relationship between cutting groove shape and the lump of coal and cutting resistance as well as cutting efficiency.
根据煤的崩落性质，研究了截槽形状与煤的块度、截煤阻力及截齿的切削效率等关系。
According to coal breakout feature, the author has studied the relationship between cutting groove shape and the lump of coal and cutting resistance as well as cutting efficiency.
根据煤的崩落性质，研究了截槽形状与煤的块度、截煤阻力及截齿的切削效率等关系。
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