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关注：1
2013-05-23 12:21
求翻译：泵组用于有吸程场合，即进口为负压时，应先向管路中进行灌水或用真空泵引水是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
泵组用于有吸程场合，即进口为负压时，应先向管路中进行灌水或用真空泵引水
问题补充： |
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2013-05-23 12:21:38
Occasions for a suction pump, which imports the negative pressure should be first in line or pump water for irrigation
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2013-05-23 12:23:18
Pump group is used for occasions, namely, the drug-import for negative pressure should always be sought first in line for irrigation water or using vacuum pump
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2013-05-23 12:24:58
The pump group uses in having the suction stroke situation, when namely import for negative pressure, should carry on first to the pipeline in irrigates or pilots with the vacuum pump
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2013-05-23 12:26:38
Pumps for suction, that is, when imported as a negative pressure, first to the pipe or irrigation pumps for water diversion
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2013-05-23 12:28:18
Pump group use for have suck Cheng occasion, namely import in order that at the time of the negative pressure, should pour water or channel water with the vacuous pump to the pipeline first
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