venturi mouthpiece是什么意思 venturi mouthpiece在线中文翻译

venturi mouthpiece是什么意思，venturi mouthpiece在线翻译，venturi mouthpiece中文意思，venturi mouthpiece的中文翻译，venturi mouthpiece发音，venturi mouthpiece例句，venturi mouthpiece词组短语，venturi mouthpiece怎么翻译，单词venturi mouthpiece的意思