The electrical device used on the axle of a spool or reel to provide electrical continuity between the rotating reel core and the stationary reel chassis.
在卷轴或卷筒的轴上所用的电装置。它用来在旋转的卷筒心子与固定的卷筒架之间提供电气连接。
Critical rotating speed, a basis for determining the rigidity and rotating speed of the main axle, is an important parameter in the design and manufacture of woodwork machine tool.
临界转速是木工机床设计与制造的一个主要参数，为确定木工机床主轴刚度、主轴转速的依据。
Casting steel container rotating lock axle rod-head fracture in machining screw.
铸钢锁轴在加工螺纹时轴杆端头断裂。
ZPY rotating disc aerator is a horizontal axle type aerator.
ZPY转碟曝气机是卧轴式曝气设备。
ZPY rotating disc aerator is a horizontal axle type aerator.
ZPY转碟曝气机是卧轴式曝气设备。
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