A small curve in the sliding part of the convex top of the lower nut acts as the wedge.
下螺母凸顶的滑动零件上有一条小弧线充当楔块。
The fixed part comprises a containing part; the sliding part can be movably arranged on the fixed part.
该固定件包括一容置部，该滑动件可移动地装设在该固定件上。
The fixed part comprises a containing part; the sliding part can be movably arranged on the fixed part.
该固定件包括一容置部，该滑动件可移动地装设在该固定件上。
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