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High-cobalt zinc concentrate bring some troubles in zinc hydrometallurgy, such as excess cobalt in middle-supernatant and low refine rate of first refine cobalt etc.. 摘要锌湿法冶炼中高钴锌精矿给生产带来一些麻烦，如中上清液含钴高及一次净化的除钴率低等。
High-cobalt zinc concentrate bring some troubles in zinc hydrometallurgy, such as excess cobalt in middle-supernatant and low refine rate of first refine cobalt etc. 锌湿法冶炼中高钴锌精矿给生产带来一些麻烦，如中上清液含钴高及一次净化的除钴率低等。
Refine rate of first refine cobalt can be increased if a amount of arsenic and antimony can be kept in middle-supernatant and appropriate temperature of middle-supernatant can be controlled. 如果保持矿粉上清液含一定量的砷和锑，并控制合适的上清液温度，将有助于提高一次净化的除钴率；
In addition, the European Central Bank has a week to the benchmark refinancing rate to banks to provide financing unlimited funds. 除此以外，欧洲央行每周还以再融资基准利率向银行提供无限融资资金。
At this rate we won't be able to afford a holiday. 照这样下去，我们不会有时间／钱去度假的。
The author is planning to refine on his work of five years ago. 作者打算把他5年前的著作修改得更完美些。
The refinancing rate fell to 12.5 per cent and the minimum one-day repo rate to 9.5 per cent after the government admitted the economy had contracted more than expected in the first quarter. 再融资利率下调至12.;5%25，最低一日期回购利率下调至9
What's the going rate of computer programmers? 计算机程序设计人员的一般工资是多少？
By power we mean the rate of doing work. 我们说功率就是指做功的速率。
They charge a fixed rate for each transaction. 他们对办理的每项业务收取一定的费用。
The going rate for freelance work is 5 an hour. 自由职业者的现行酬金是每小时5英镑。
At that rate, he ought to be punished. 如果那样，他应该受到惩罚。
Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
Reading good books helped to refine her speech. 读好书有助于使她谈吐典雅。
Above rate applicable until further notice. 除非另有通知，上述运费率适用。
At any rate we must go on Tuesday. 无论如何，我们必须在星期二走。
Their daily work is to refine crude oil. 他们每天的工作是精炼原油。
The car is going at the rate of60 miles an hour. 汽车以每小时六十英里的速度行驶。
To refine beyond a desired or appropriate point. 使过分精炼精炼得超过了理想的或适合的限度
At the rate you work, you'll never finish. 按你这样的工作速度，你绝对做不完。