You will need to drain the central heating system before you replace the radiator.
你得先把中央供暖系统的水排净再更换散热器。
It is better than radiator heating in view of heating effect and saving energy.
与散热器采暖相比，采暖效果好，节约能源。
It is better than radiator heating in view of heating effect and saving energy.
与散热器采暖相比，采暖效果好，节约能源。
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