英语词汇“packing bolt”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	packing bolt
释义	> as lemmas packing bolt packing bolt n. ΚΠ 1861 Let. 28 Nov. in U.S. Naval Rec. 759 The packing bolts in the steam cylinder are completely gone. 1996 Product News Network (Nexis) 15 Aug. A valve packing bolt permits adjustment and provides a secondary stem seal. extracted from packingn.¹ < as lemmas
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> as lemmas