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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- 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。
- Nitrogen Detector 氯气检测仪
- A marine detector is a hydrophone. 海洋检波器是水中地震检波器。
- Thermopile is usually a blackened thermal detector. 热堆一般是个涂黑了的热探测器。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- The detector tube is filled with nitric oxide. 检测管中充满了氧化氮。
- Establish proper injector and detector temprature. 给进样口和检测器设定恰当的温度。
- 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。
- Please walk through the metal detector. 请走过金属检测器。
- 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?
- Design Digial Versatile Metal Detector. 种数字式金属探测器设计。
- Fast neutrons are also captured by nitrogen. 快中子也可以被氮吸收。
- Simulating alarm test for fire detector. 火警检测器自动报警试验。
- Nitrogen forms four-fifths of the atmosphere. 氮气占空气的五分之四。
- Do you think it is ok to use a lie detector? 你认为用测谎仪好吗?
