helix of cylindrical worm是什么意思，helix of cylindrical worm的翻译，helix of cylindrical worm音标、读音、用法和例句

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helix of cylindrical worm是什么意思，helix of cylindrical worm的翻译，helix of cylindrical worm音标、读音、用法和例句_淳朴汉英词典

helix of cylindrical worm

基本解释

专业释义

機械工程