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》

总的结石排净率为90%。

The total stone free rate was 90%.

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结石总排净率为100%。

General stone clearance rate was100%.

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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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结果碎石成功率达90%，结石总排净率为80%，1例术后出现大出血并发症。

Results The successful rate of lithotripsy was 90% and the total stone-free rate was 80%.

youdao

结果碎石成功率达90%，结石总排净率为80%，1例术后出现大出血并发症。

Results The successful rate of lithotripsy was 90% and the total stone-free rate was 80%.

youdao