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单词
machine screw
释义
WordReference Random House Unabridged Dictionary of American English © 2024
machine
′
screw′,
Mechanical Engineering, Building
a threaded fastener, either used with a nut or driven into a tapped hole, usually having a diameter of about ¼ in. (6.4 mm) or less and a slotted head for tightening by a screwdriver. Cf.
cap screw, machine bolt.
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更新时间:2024/9/21 22:15:52