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单词 screw dog
释义

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screw dog
screw dog n. a clamp adjustable by a screw; chiefly in plural.
ΘΚΠ
society > occupation and work > equipment > clutching or gripping equipment > [noun] > clamp > vice > types of
wresting-vice1609
hand vice1611
bench screw1678
bench vice1688
screw dog1855
pin vice1868
taper-vice1877
staple-vice1881
vice grip1915
1855 Sci. Amer. 18 Aug. 386/2 Sawing Lumber... I claim the pointed screw dogs..operating in the manner substantially as set forth.
1914 Machinery May 808/2 How could the screw dogs be tightened unless a special wrench were provided?
2014 Politics & Govt. Week 7 Aug. Screw dogs have to be held in an outboard position by friction or mechanical means or the lens can not swing clear.
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更新时间:2025/1/11 18:53:17