Question

英语翻译滑轮的主要作用是导向和支承,以改变钢丝绳的走向,从而改变所传递拉力的方向,也可以用来平衡钢丝绳分支的拉力,或组成

Answer 1

The pulley main function is the guidance and the supporting, changes the steel wire the trend, thus changes transmits the pulling force the direction, also may use for to balance the steel wire branch the pulling force, either the composition block and tackle achieved reduces effort or the speed-up goal, therefore, in lifts heavy objects in the installation work, widely uses the pulley and the block and tackle, coordinates the hoist, the crafty pole, the hoisting mechanisms, the rigging and so on, carries on the equipment the transportation and the hoisting work