chain pulley block 链滑轮组
chain pulley 链条滑轮
double chain pulley 双链滑轮
electric chain pulley block 电动葫芦
chain n pulley 链条滑轮
The chain, pulley, shaft, belt and other running parts should be equipped with protective cover and protective board.
设备上的链条、皮带轮、轴、皮带及其他运转部分都应该设置上防护罩和防护板。
Pulley: in mechanics, a wheel that carries a flexible rope, cord, cable, chain, or Belt on its rim.
滑轮：力学上的一种装置，在边缘装有活动绳索、弦、缆、链条或带子的轮。
Steel column is fixed to special jig, slipping below the installation position by chain block and lifting by pulley block and windlass.
将钢骨柱固定在专用胎架上，通过倒链滑移至安装点下方后，采用滑轮组和卷扬机进行提升就位。
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