The government provided freecoal for heating in North China.
政府为华北地区提供免费的取暖用煤。
2
The policy gave freecoal for fuel boilers to heat homes and offices to cities north of the Huai River, which divides China into north and south.
因淮河为中国区分南北的界限，故之前的政策为中国淮河以北城市的家庭和办公室提供免费的煤燃料锅炉供暖。
3
China itself made the comparison possible: for decades, a now-discontinued government policy provided freecoal for heating, but only in the colder north.