词汇	扳掣式操作
释义	扳掣式操作 toggle operation
随便看	concentric tubing string installation concentric tubing workover rig concentric tubular reactor concentric, turbine stage concentric, two-pole, coupling concentric, two-pole, plug-type device concentric type concentric-type cabling concentric type plate valve concentricus Micrococcus concentric valve concentric variable capacitor concentric vascular bundle concentric viscometer concentric visual field contraction concentric weathering concentric whirlpool concentric windeng concentric winding concentric windings concentric wire rope concentric wiring concentric wiring system concentric with concentric work