用coal injection造句子，“coal injection”造句

2、Coal injection of blast furnace is an energy-save and consumption-reduction project and a set of reliable automatic control system has an important function on continuous and stable coal injection.

1、The pulverized coal injection into blast furnace began early in China, which played a leading role in the development of coal injection technology.

3、Industrial experiment of intensified smelting by oxygen-coal injection on No. 3 BF of Anshan Iron & Steel Group Co.

4、The increase of high blast temperature is an effective measure to enhance pulverized coal injection rate, reduce energy consumption, and cost.