使用辅助增压泵可降低贮箱压力，并提高发动机主泵的入口压力，以保证主泵在没有汽蚀的条件下可靠工作；
The pressure in rocket tanks and the pressure on the inlet of main pumps can be increased by using boost pumps, so as to ensure that the main pumps can work reliably without cavitation erosion.
并保证泵在工作时，不超过其允许汽蚀余量。4、吸入和排出管路应该有支架。
And ensure the pump at work, no more than the allowed NPSH. 4, suction and discharge line should be a support.
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