The ex-factory cost of No. 3 jet fuel will rise by 300 yuan perton to 5,990 yuan.
号航空煤油的出厂成本价每吨提高 300 元，升至 5990 元。
2
The production cost is reduced by 363 yuan perton of carbon.
生产成本低，比同样条件下的老工艺每吨炭降低成本363元；
3
The operation practices showed that this technical design could greatly reduced the cost and the energy consumption of ammonia perton and had made a great deal of economy benefit.