rotary contact
... 旋转球头 rotatingballhead 旋转触头 rotary contact 旋转性头震颤(动物) head nystagmus ...
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旋转电连接头在柱状接头的头端面和外表面分别设有环状电极片和侧弹触片。
Said electric gang socket has annular electrodes and bottom contacts on its internal side wall and bottom of its recess.
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