1)synthetic molding sand,合成模砂2)semi-compounded molding sand,半合成模砂3)synthetic unit sand,合成单元模砂4)synthetic sand,合成砂5)synthetic magnesite,合成镁砂6)synthetic sand,合成型砂
用法和例句
The oxidized layer at the EAF bottom surface,which is made by MgO-CaO-Fe_2O_3 synthetic sand is disappeared and reproduced successively during operation.
