“coal injection”造句，怎么用coal injection造句

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.

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.

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