研究了用酸性乙腈硫酸铜体系从辉铜矿中提取铜.Leaching of copper from chalcocite with acidic acetonitrilecopper sulphate system was studied.除自然铜和孔雀石之外, 还有黄铜矿 、 斑铜矿 、 辉铜矿 、 铜蓝和黝铜矿等.In addition to the natural copper and malachite, there are chalc...
The nurse will tell you when to bear down.分娩时护士会告诉你何时使劲收缩腹肌.I cannot bear to see bear bear down upon a hare.我忍受不了(自己)看着一只熊对一只野兔施压.He tried his best to bear down all of his oppositions.他尽全力击败一切反对意见....
Listen to the jabber of those monkeys.听那些猴子在吱吱喳喳地叫.Don't talk on and on [ jabber away ] when you can say it in a few words.两句话能说完的事就别犯 碎嘴子 了.Jabber is an open instant message and presence protocol and has been widel...