生孩子是使自己不再年轻时尚的最快方法。Having children was the quickest way to lose your street cred.它既时尚又耐穿，而且容易打理。It's fashionable but wearable, and it's easy to look after.所有新时尚都是从打破现有常规开始的。All new fashion starts out as a react...
The reaction kinetics leading ilmenite directly by acid was investigated.研究了盐酸直接浸取钛铁矿的浸取动力学.Mining ilmenite makes serious surface water pollution, and degenerates ecological environment.钛矿开采严重污染地表水, 并使矿区生态环境普遍退化.Associat...