伦敦市芭蕾舞团从波修瓦芭蕾舞团聘来了两名男舞蹈演员。The London City Ballet has engaged two male dancers from the Bolshoi.许多妇女懂得怎样修自己的车。Many women know how to carry out repairs on their cars.她目前在利兹大学修读一门商科课程。She is currently doing a business studi...
研究了反硝化除磷工艺的运行效果.A denitrifying dephosphatation process was operated in this study.考察了SBR生物 除磷工艺模型中活性污泥的微生物组成及其在该除磷系统中的功能.Microorganisms of the activated sludge in SBR phosphorus removal system and their functions have be...