The mechanism of oxygen absorption and deoxygenation is discussed.讨论了该配合物的吸氧与释氧机理.And then advice on choosing the methods of deoxygenation of boiler water is given.在此基础上,找出它们的优缺点,提出了锅炉给水除氧方法选用的建议性意见.Quartz sand, activate...
He is one of the most wanted criminals in Europe.他是欧洲最重要的通缉犯之一。There is very little stigma attached to crime and criminals.人们几乎都不把犯罪和罪犯视为一种耻辱。It's pleasing to see some criminals have a conscience.看到有些罪犯还有良知让人感到欣慰。...