初步抽气泵
词语: 初步抽气泵
解释: backing pump
词典: 环境专业汉英词典
初步抽气泵 相关解释
backing pump 〔名词〕旋转油泵
backing pump 〔名词〕前级泵
backing pump 〔名词〕初步抽气泵,前级泵
backing pump 前级泵
初步抽气泵 rough pump
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