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English Translations » 【化工工程交流】 » Fundamentals of Manufacturing Processes (Multiple Choice) 20

Fundamentals of Manufacturing Processes (Multiple Choice) 20180305

2018-03-05View Original

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The main reason limiting the increase in the speed of gear pumps is . A. It is difficult to increase the speed of the prime mover. B. It will cause excessive load on the bearings. C. It will increase suction difficulties. D. It will exacerbate the oil trapping phenomenon
Reply #22018-03-05
The main reason limiting the increase in the speed of gear pumps is . B. It is difficult to increase the speed of the prime mover. B. It will cause excessive load on the bearings. C. It will increase the difficulty of suction. D. It will exacerbate the oil trapping phenomenon. B

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Translated at 2026-07-21 04:00:44

Original: https://bbs.hcbbs.com/thread-1935188-1-1.html

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