青云翻译

Compared with electric air conditioning, energy efficiency and are environmentally friendly, carbon dioxide emissions is only a quarter of electric air conditioning.

Compare with electric air conditioning, energy efficient, environmentally, only carbon dioxide emissions of electric air conditioning one-fourth.

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Compared with that of electricity, air-conditioning, high efficiency of energy use, environmental-friendly 2 carbon dioxide emissions only the power of 4 air-conditioned.

Compare with electric air conditioning, energy efficient, environmentally, only carbon dioxide emissions of electric air conditioning one-fourth.