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URL title: 罗茨真空泵与前级泵抽速之间的关系-行业动态-山东泵业科技有限公司
URL description: 罗茨真空泵的抽速与前级泵抽速之间的关系，主要取决于容积效率和罗茨真空泵许可的压力差。如果容积效率低，则罗茨真空泵机组的有效抽速将会明显
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