“焦煤”造句
每年,这个煤矿都会产出5百万公吨的
焦煤.
It produces 5 m tonnes of coking coal a year.
并在确保高炉优化用料的同时,提出了合理使用
焦煤资源的有益建议.
And proposed some beneficial suggestions for the reasonable using metallurgical coal resources.
氨气 、 煤焦油、
焦煤都是煤气生产过程中的 副产品.
Ammonia, coal tar and coke are all by - products obtained in the manufacture of coal gas.