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...
Did a power failure cause the food to spoil and become malodorous in your fridge?停电引起食物变坏,冰箱里异味横生,您有过这样的事 吗 ?We all know that fats spoil by becoming rancid.我们都知道油脂变质后会发臭。He is a man who will spoil rather than accomplish ...
an unsympathetic response冷淡的反应...an unsympathetic doctor.冷漠的医生Save your breath!Don’t even mention your illness to your unsympathetic boss.省点力气吧!甚至别对你那位没有同情心的老板提及你生病的事。He's unsympathetic, but charismatic and complex....
Meggie would enrich the postal service with letters every day, at least to Dane.麦琪,每天都会用信来使邮局赚到一点钱的, 至少要写给丹尼.However, Pre - S 1 is located on Dane granule and is a reliable indicator of replication.但 Pre -S1存在于Dane颗粒上,是复...
He could not see the driver as the car nosed forward.车慢慢向前开，他却看不见司机。If nothing else, Doug is a hard-nosed businessman.别的不说，道格起码是个精明务实的商人。Cartoons showed the Minister as a long-nosed Pinocchio.漫画把部长描画成长鼻子皮诺曹。...
Silkworm culture is practised in order to get silk.养蚕是为了得到蚕丝.Paris is a good city for people who are interested in culture.对于修养心性有兴趣的人来说,巴黎是个好城市.This is a culture of cholera germs.这是培养出的霍乱菌....