line string up
... 滑车系绳 dog strop 滑车穿绳 line string up ; string the block 滑车装绳 reeving ; line reeving ...
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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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