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关注：1
2013-05-23 12:21
求翻译：单向阀：在水泵的出水口处设置的，是防止水泵吸水后压力变小时回水，从而保证系统的正常工作。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
单向阀：在水泵的出水口处设置的，是防止水泵吸水后压力变小时回水，从而保证系统的正常工作。
问题补充： |
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2013-05-23 12:21:38
The check valve: the outlet of the pump set is to prevent the pump suction pressure variable hours backwater, thus ensuring the normal working of the system.
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2013-05-23 12:23:18
Check valve: the pump the water outlet of the set, is to prevent water pump suction water pressure after hours return, thus ensure that the system is working.
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2013-05-23 12:24:58
Cone-way valve: In the water pump water outlet place establishment, after is prevented water pump absorbing water the pressure changes the small time backwater, thus guarantee system normal work.
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2013-05-23 12:26:38
Check valve: set at the outlet of the pump is to prevent water pump suction pressure change after hours return, so as to ensure the system is working properly.
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2013-05-23 12:28:18
正在翻译，请等待...
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