“American standard screw thread”的概念、定义、翻译、参考文献-科学参考

单词	American standard screw thread
释义	American standard screw thread [ǝ`mer·ǝ·kǝn `stan·dǝrd `skrü ´thred] ^{DESIGN ENGINEERING} Screw thread whose dimensions conform to those of a particular series of specified sizes established as a standard in the United States; used for bolts, nuts, and machine screws.
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