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- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- Nitrogen forms four-fifths of the atmosphere. 氮气占空气的五分之四。
- Nitrogen forms about four-fifths of the atmosphere. 氮约佔大气的五分之四。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Is a nitrogen atmosphere needed for hand soldering? 手工焊接需要使用氮气吗?
- As a work of art it is very poor. 作为艺术品这是十分拙劣的。
- The poor chap gets terrifically het up. 这个可怜的人气得要命。
- Nitrogen Atmosphere in Bearing Steel Ball H, T. 氮基保护气氛中轴承钢球的热处理
- Mr.Black bowed out of politics due to poor health. 布莱克先生由于健康不佳而退出政治生涯。
- The poor old man shuffled off in his worn shoes. 这位可怜的老人穿希破烂不堪的鞋子一步一拖地走。
- Poor Lionel went to pieces after his wife died. 可怜的莱昂内尔在妻子死后垮了下来。
- The poor old man has come down to the bedrock. 那可怜的老人只剩下最后一块钱了。
- His latest effort is a poor excuse for a novel. 他最近的作品只是一部劣质的小说。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- I thought his jokes were in very poor taste. 我认为他讲的笑话太粗俗了。
- His concern for the poor is only a pose. 他对穷人的关心只不过是做做样子罢了。
- Poor girl, I feel for you, toothache is painful. 可怜的姑娘,我都替你难受,牙痛真够呛。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- The poor old man died of starvation. 那个可怜的老人被饿死了。