The national average time-sharing fractions of clean cooking and heating energy source in rural China for 1992–2017. (IMAGE)

Science China Press

The national average time-sharing fractions of clean cooking and heating energy source in rural China for 1992–2017.

Caption

The left were the time-sharing fractions of clean cooking energy source, and the right were of heating. Both of cooking and heating showed a constantly upward trend from 1992 to 2017. However, the fractions of cooking were significantly higher than those of heating.

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