tapered male thread是什么意思，tapered male thread的翻译，tapered male thread音标、读音、用法和例句

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tapered male thread是什么意思，tapered male thread的翻译，tapered male thread音标、读音、用法和例句_沉淀汉英词典

tapered male thread

基本解释

专业释义

能源科学技术