锅炉用碳素钢，夹杂气体较少，一般采用碱性平炉钢即使用碱性炉衬。

Carbon steel boiler, with less gas, generally use the basic open hearth steel i. e. the use of basic lining.

youdao

锅炉用碳素钢，夹杂气体较少，一般采用碱性平炉钢即使用碱性炉衬。

Carbon steel boiler, with less gas, generally use the basic open hearth steel i. e. the use of basic lining.

youdao