气动卷扬机操笔者要明确承认气动卷扬机钢丝绳以及钻塔不干涉（可以用轮轴导向），以避免毁伤钻塔的钢布局，特别是指梁。
The air winch Operator shall ensure that the winch wire is moving freely in the derrick ( possibly guided by pulleys ) to avoid any damage to the steel structure , especially the fingerboard .
气动卷扬机