backing pump

短语词组

短语

• backing g pump 前级泵;预抽真空泵
• backing vacuum pump 前级真空泵
• high -backing pressure pump 高背后压力泵
• forepump backing pump 预抽泵
• vacuum backing pump 真空旋转泵
• backing pump forepump 预抽泵
• mechanical backing pump 前级机械泵
• backing pump for molecular pump 分子泵的前级泵
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