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- vertical freezing of liquefied nitrogen 液氮垂直冻结
- Application of Liquefied Nitrogen Freezing in the Construction of the Shield Driving out of the Tunnel 液氮冻结在盾构出洞施工中的应用
- On Construction Technique of Liquefied Nitrogen Frozen Repairing Drainage Pipeline of Railway Link Passage 地铁联络通道液氮冻结修复排水管的施工技术
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- a process that is used to liquefy nitrogen. 用来使氮液化的过程。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- liquefied nitrogen 液氮
- liquefied nitrogen vaporization 液氮气化
- Ice is liquefied when it is too hot. 太热的时候冰就会化的。
- Liquefied petroleum gas retail, wholesale. 液化石油气零售、批发。
- LIQUEFIED GAS, TOXIC, FLAMMABLE, CORROSIVE, N.O.S. 液化气体，毒性，易燃，腐蚀性，未另作规定的
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- Chlorine is usually liquefied before use or storage. 氯在使用和贮存以前通常要液化。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- Fast neutrons are also captured by nitrogen. 快中子也可以被氮吸收。
