你得先把中央供暖系统的水排净再更换散热器。

You will need to drain the central heating system before you replace the radiator.

《牛津词典》

他们挖了一条水渠把营地的水排掉。

They made a channel to take the water off the camp site.

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卫生间设施简陋，满地是水排不出去。

Toilet facilities primitive, the water is full of the grand.

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你为什么把水排掉？

Why did you drain the water?

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他们挖沟把水排掉。

They dug ditches to run the water off.

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我们将池塘里的水排干，然后又注入了干净水。

E. g. 1 we drained the pool and filled it with pure water.

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为使庄稼长得更好，他们打算把那块地的水排干。

They intend to drain the land to make their crops grow better.

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如压力测试后如不立即试运行冷却器，应将冷却器的水排干（见第5项停用）。

The water should be let out if the trail run will not be done at once after pressure test.

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排掉水后重新将大米放入锅中。

Drain the rice and return it to the pot.

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为了提供农业用地，这些河流被排干水。

The rivers were drained to provide agricultural land.

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空气排净的标志是，排气孔中出来的全部都是水。

Sign of the net emission of air is vent out all the water.

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每个冬天，游泳池都要被排干水并清洁。

The swimming pool is drained and cleaned every winter.

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如果停用超过三天，应排干冷却水。

If stop using over three days, the water should be let out.

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他们排干沼泽地的水，将它变成了肥沃的土地。

They drain the swamp and turn it into fertile land.

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我们得排30分钟的队才能买到一桶水。

We have to queue nearly 30 minutes to get a bucket of water.

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我们得排30分钟的队才能买到一桶水。

We have to queue nearly 30 minutes to get a bucket of water.

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