英语词汇backing ring怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	backing ring
释义	backing ring 美/ ?b?k?? r?? / 简明释义支撑环：一种金属环，用于加固对接焊缝并防止焊接金属进入焊缝处的管道。网络释义短语 1 backing ring 机垫环 ; 衬环 ; 托圈 ; 衬环垫圈 2 weld with backing ring 背面垫环焊接 3 backing ring flange 衬环法兰双语例句 1 D ring is not a necessary backing part which has biological activity in these compounds. 环不是该类化合物具有生物活性的必需骨架部分。
随便看	triple energizer triple energizer convulsion triple energizer meridian triple-engined airplane triple-engined type triple-engine layout triple engine type Triple Entente triple entry triple-entry room-and-pillar mining triple-entry system triple error correcting code triple-error-correcting code triple-error correcting code triple expansion triple-expansion triple expansion engine triple-expansion engine triple expansion steam engine triple-expansion steam pump triple-exponential triple exponential smoothing triple fabric triple fault triple feature

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