英语词汇valve regulator简单造句、意思、用法及例句-英语例句辞典

单词	valve regulator
例句	原声例句当月 CNN 10 学生英语 2020年10月合集 His most popular invention was a regulator valve for diving. 他最受欢迎的发明是潜水调节阀。
随便看	closed down closed drainage closed economy closed ecosystem close defect close defence closed end closed ended closed ends closed entry closed environment closed face closed figure closed file closed files closed floor closed fold closed forest closed form Closed Fund Closed Gate closed group closed harbor closed her doors closed high

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