“lead-free soldering”的概念、定义、翻译、参考文献-科学参考

单词	lead-free soldering
释义	lead-free soldering Encyclopedia 工学钎焊释 lead-free soldering无铅钎焊所采用的钎料、电子元器件以及印刷电路等均不含铅的钎焊。又称无铅软钎焊。
随便看	homotopic chain homomorphism homotopic fields homotopic foliation homotopic invariant homotopic loop homotopic manifold homotopic mapping homotopic morphism homotopic path homotopic resolution homotopic simplex homotopic to zero homotopism homotopy homotopy algorithm homotopy associative homotopy associative mapping homotopy associativity homotopy axiom homotopy boundary homotopy category homotopy chain homotopy characteristic homotopy class homotopy classification

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