kelly_spinner_有道手机词典

1.Yesterday we decided that we should go to machine shop to repair the kelly spinner the day after tomorrow.
昨天我们决定后天去机厂修理方钻杆旋扣器。
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2.The kelly spinner has largely replaced the infamous spinning chains, which were responsible for numerous injuries on the rig floor.
方钻杆旋转器已经很大程度地替代了旋链，而正是旋链造成了钻台上的大部分伤害事故。
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