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- To explore the indoor air quality of Peking university,the concentrations of carbon monoxide(CO),carbon dioxide(CO 2) and non methane hydrocarbons (NMHC) in the indoor air were measured in different types of rooms of Peking university. 为了解北京大学园区室内空气质量，对园区不同类型房屋内CO、CO2与NMHC（非甲烷烃）浓度进行测定。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- methane hydrocarbon 甲烷系烃
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- I had had a few beers and was completely non compos mentis. 我喝了些啤酒就头昏脑胀了。
- He was declared persona non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- Methane may have extraterrestrial significance. 甲烷具有星际意义。
- Methane is said to be hydrophobic. 甲烷被称为疏水的。
- We decided to declare them personae non grata. 我们决定宣布他们为不受欢迎的人。
- They were able to nitrate methane to nitromethane. 他们能将甲烷硝化成硝基甲烷。
- The petroleum hydrocarbon is called hexane. 己烷是一种石油碳氢化合物。
- The hydrocarbon must be an alkene. 这个碳氢化合物必定是烯烃。
- The rest is mostly methane and ammonia. 其余的几乎都是甲烷和氨。
- He was accused of spying and declared non grata. 他被控从事间谍活动而被宣布为不受欢迎。
- Cum non sis, qui fueris, non esse,cur"velis vivere. “当你到了今日之我非复昔日之我的时候，就没有再要活下去的理由了”。
- Must be some kind of methane buildup. 应该是沼气集聚起来了.
- Any of various hydrocarbon pesticides, such as DDT, that contain chlorine. 有机氯一种含氯的碳氢化合物杀虫农药，如滴滴涕杀虫剂
- Study of Particulate Methane Monooxygenase From M. 颗粒性甲烷单加氧酶的研究。
