“backing ring”的概念、定义、翻译、参考文献-科学参考

单词	backing ring
释义	backing ring [`bak·iŋ ´riŋ] ^ENGINEERING A strip of metal attached at a pipe joint at the root of a weld to prevent spatter and to ensure the integrity of the weld.
随便看	synphylogeny synphysiology synsepalous syntactic analysis syntactic error syntactic extension syntactic foam syntactic model syntactics syntactic semigroup syntax syntax checker syntax diagram syntax-directed compiler syntax error syntaxial overgrowth syntaxis syntax-oriented compiler syntax scanner syntectic syntectonic Synteliidae syntenic group Syntexidae syntexis

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