艉斜桅滑车 bee blocks
前桅滑车索 fore tackle pendant
桅顶滑车 cheek block
前桅帆滑车的伸出架 boomkin
前桅帆滑车的伸出梁 bumpkin
桅顶]俯仰滑车座 topping bracket
桅肩滑车 bullock block
桅顶吊索滑车 leech block
·2,447,543篇论文数据,部分数据来源于NoteExpress
位于重型井架或桅架式井架顶部的固定的滑轮组(称之为滑车轮槽轮),通过该滑轮组钻井钢丝绳进行穿绳。
The fixed set of pulleys (called sheaves) located at the top of the derrick or mast, over which the drilling line is threaded.
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