From experience, many customers recognize the concern about motor overheating but fail to understand the concern about prevention of vortexing and the associated pump damage that can occur.

经验告诉我们，许多用户都能够认识并注意电机过热问题，但是往往不了解并忽视防止涡流及其可能引起的泵故障。

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Engineers determined there was nothing to lose by installing a new pump, despite the lack of visible damage to the old one.

WSJ: Spacewalkers Replace Space Station Pump

But this year the gates will remain closed, with the long periods of freezing weather over the winter blamed for damage to the drains and pump house.

BBC: Brynamman Lido sunk by ?20,000 repair bill

Three more people were arrested at the pump house area of the plant on suspicion of aggravated trespass and criminal damage, police said.

BBC: NEWS | UK | England | Kent | Protesters end power plant action