CONTRIBUTION FOR CALCULATING PUMPING SPEED OF ROOTS-TYPE PUMPS

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作者：

HAMACHER, H

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来源：

VAKUUM-TECHNIK | 1970年 / 19卷 / 08期

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中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

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页码：215 / &

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