Sediment transport may not pump more water or mud. Flooding electric motor cavity should always clean up the sand, the replacement of electric water cavity.

电泵不得输送含沙量较多的水或泥浆。水浸电机应经常清理电机腔内的沙粒，更换电机腔内的清水。

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Therefore, use of water source heat pump is clean and renewable energy as a technology.

所以说，水源热泵利用的是清洁的可再生能源的一种技术。

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They imported sand and sectioned off a part of the ocean where they pump clean water .

他们进口的沙子和切片了部分地方海洋泵干净的水。

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And when I got there, I found that even though there was no clean water and no electricity and day-long lines for gas at the pump, that people were really relieved that Saddam Hussein was gone.

NPR: Aaron Glantz: 'How America Lost Iraq'