The foundation brake rigging transmission efficiency is a significant parameter for the brake system design.
基础制动装置的传动效率是制动系统设计的重要参数。
Prior to lowering the top drive system or rigging down, ensure that sufficient wraps of drilling line remain on the drum.
在下放或拆卸顶驱系统之前,要保证辊筒上留有足够的大绳圈数。
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