基本解释[經濟學]防腐蝕閥英汉例句雙語例句Parametersoff corrosion proof three-function valve and its develolpment are introduced in the paper.介紹了防腐三用閥的性能蓡數，及其研究過程。corrosion-proof valve更多例句专业释义經濟學防腐蝕閥