Close gearbox gets left and right hand threads to cut.
关闭变速箱获得左，钻床右手线程削减。
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Right and left hand threads is available.
左，右手线程可用。
Gearbox gets left and right hand threads to cut.
齿轮箱得到左，钻床右手线程削减。
应用推荐
模块上移
模块下移
不移动