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单词 θ213121
释义
society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > screw > other parts of screw (2)
shank1678

The stem or straight part of anything. Cf. shaft, n.2 The blank part of a screw, or screw-bolt, between the thread and the head.

screw cap1821

A cover to protect or conceal the head of a screw; (also) a screw head, by which a screw is turned.

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更新时间:2024/9/21 2:34:19