This paper briefly expounds the technological design and smelting process of ZCuZn 40 Mn 3 Fel.主要论述了锰黄铜熔炼工艺设计及熔炼过程.Expounds liquid level control system of flotation machine and its industrial test.介绍浮选机矿浆液位控制系统及其工业试验过程.T...
He scrambled up a steep bank.他攀上了一个陡峭的河堤。Ann threw back the covers and scrambled out of bed...安掀开被子，急忙下了床。A new type credit card now being marketed used a'scrambled'photography of the cardholder.在目前正投入市场使用的一种新式...