diversion bottom tunnel是什么意思，diversion bottom tunnel的翻译，diversion bottom tunnel音标、读音、用法和例句

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diversion bottom tunnel是什么意思，diversion bottom tunnel的翻译，diversion bottom tunnel音标、读音、用法和例句_贰靶汉英词典

diversion bottom tunnel

基本解释

专业释义

水利工程