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单词
universal chuck
释义
WordReference Random House Unabridged Dictionary of American English © 2024
u
′
niver
′
sal chuck
′
,
Building, Mechanical Engineering
a chuck, as on a lathe headstock, having three stepped jaws moving simultaneously for precise centering of a workpiece of any of a wide range of sizes.
1815–25
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更新时间:2025/12/7 17:07:17