In Northeast China, the roads and yards are all covered by corn drying in the sun. The total cost for raising a bear per month is no more than 20 yuan.
在东北，马路和院落里到处都晒满了玉米，算下来成本一月不过十几元钱。
Drying sewage sludge by indirect heating by extraction steam from turbine is the best technology for power generation by sludge incineration because the total cost of sludge disposal is the lowest.
采用汽轮机抽汽间接加热方法干化污泥，污泥处理的直接成本最低，是最佳的污泥焚烧发电技术。
Drying sewage sludge by indirect heating by extraction steam from turbine is the best technology for power generation by sludge incineration because the total cost of sludge disposal is the lowest.
采用汽轮机抽汽间接加热方法干化污泥，污泥处理的直接成本最低，是最佳的污泥焚烧发电技术。
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