Another high altitude rocket
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Article
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1952
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Elsevier Science
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English
โ 89 KB
## CURRENT TOPICS 531 the process of pumping explosive or inflammable fluids, such as gasoline or alcohol; when used for chemical purposes, there is no contamination of liquids. Since it contains no sliding or rubbing parts, the pump can handle crystals, sand, or dirt in liquids. It can be run by