基本解释[冶金工程技术]表面硬化用合金英汉例句双语例句Trim numbers with H have cobalt alloy hard faced seat ring facing.带有H的阀内件型号具有钴合金硬面阀座环表面。hard facing alloy更多例句词组短语短语hard -facing alloy 表面加硬用合金Stellite hard facing alloy Stellite 硬面合金hard facing alloy更多词组专业释义冶金工程技术表面硬化用合金