Based on engineering practice, discusses som e characteristics of air conditioning design in large space buildings with light s teel frames.

结合工程实践,探讨了大间建筑计的一些特点。

Therefore,the several rephosphorization prevention methods are put forward by slag optical basicity control when the som...

此提出在转炉件,控制钢包光学碱度来控制回磷的几点措施。