slag produced in making steel; low in silica but having large amounts of calcium phosphate; useful as fertilizer
双语例句
When it is in the vertical welding position, the slag and melted iron can not be dripped and the through welding of weld sublayer can be ensured. 并对直流电源型的焊条药皮碱性渣系的选择，获得较好的低温冲击韧性。
Normal magnesia brick is made of Alumina-Magnesia spinel, periclase, It has higher temperature strength, good thermal shock stability, strong resistance to basic slag. 普通镁铝以镁铝尖晶石和方镁石为主要晶相，具有较高的高温强度和较好的热稳定性，抗碱性炉渣侵蚀。
