bull deep-well pump是什么意思，bull deep-well pump的翻译，bull deep-well pump音标、读音、用法和例句

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bull deep-well pump是什么意思，bull deep-well pump的翻译，bull deep-well pump音标、读音、用法和例句_伍贰汉英词典

bull deep-well pump

基本解释

专业释义

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