Gaseous helium is inert, colorless, odorless, non corrosive, and nonflammable.气态氦极不活泼, 无色, 无嗅, 无腐蚀性, 不可燃.The application of gaseous ozone as ( biocide ) is a questionable practice.温室中使用臭氧气体防治病虫害是个错误.The rate of chlorosul...
Air whether in the gaseous or liquid state is a fluid.空气,无论是气态的或是液态的,都是一种流体.All substances, whether they are gaseous, liquid or solid, are made of atoms.一切物质, 不论它们是气体 、 液体还是固体, 都是由原子构成的.Freon exists both in liquid and ga...
Helium is a very light gas.氦是一种非常轻的气体。Helium is a gas used in balloons.氦是一种用于气球的气体.Unlike helium - 4, it cannot be produced by radioactive decay.与氦 - 4不同之处是, 氦-3不能由放射性衰变产生....
预防脑炎的草药在这一地区俯拾皆是.Herbs for the prevention of encephalitis can be found everywhere in this area.目的探讨病毒性脑炎的早期临床诊断和治疗.Objective To investigate the early diagnosis and treatment of viral encephalitis.目的根据临床病例分析并总结感染后脑炎的临床特征....
She is fond of flaunting her superiority before her friends and schoolmates.她好在朋友和同学面前逞强.Did you have fun with your schoolmates for the weekend?和校友一起度周末开心 吗 ?He was a favorite with his schoolmasters but not his schoolmat...