1)two-hand controls,双手解扣装置2)relieving gear,解扣装置3)two-hand control device,双手控制装置4)bead insertdevice,扣圈装置5)rotating-screw device,旋扣装置6)tightening-up device,扣紧装置
用法例句
A type of rotating-screw device suitable to wide range of diameters,providing rotating movement in both clockwise and counterclockwise directions,and floating in all three-dimensions;
