大家都搜：
氮气"XiTong"
1、nitrogen fixation───固氮作用；n.固氮（作用）
2、nitrogen cycle───[土壤]氮循环
3、nitrogen balance───[生理]氮平衡
4、nitrogen species───形态氮
5、nitrogen fertilizer───[肥料]氮肥；氮肥肥料；氮肥（料）
6、ammonia nitrogen───氨氮；[无化]氨型氮，氨基氮
7、ammoniacal nitrogen───氨态氮；[化] 氨型氮
8、nitrogen───n.[化学]氮
9、nitrogen monoxide───[无化]一氧化氮；一氧化二氮
1、Technical specification of oil refinery nitrogen system design───炼油厂氮气XiTong设计技术规定
2、To realize operation of combined network between nitrogen system and air system, a scheme of adding gas crossover lines is employed.───为实现供氮和供风XiTong的联网运行，采用了增设气体跨线的方案。
3、mathematical model of liquid nitrogen system of a space environmental simulator is introduced and a quasi-stationary control method is developed in this paper.───空间环境模拟器的液氮XiTong庞大复杂，为满足确定控制方案、建立故障诊断模型、技术改造等的需要，建立液氮XiTong的数学模型是十分必要的。
4、proved by test that the problem of large space simulator liquid nitrogen system starting has been solved successfully in simulator liquid nitrogen system.───通过初步调试证明，液氮XiTong能够很好地解决大型空间环境模拟设备液氮XiTong启动困难的问题。
5、Analysis and Treatment of Expander's Trouble in Middle Pressure Deep Refrigerating Producing Nitrogen System───中压深冷制氮XiTong中膨胀机故障的分析与处理
1、Circulated nitrogen system is designed to improve the wettability and fluidness of lead-free solder and to ensure that the solder joints are shiny and bright.
2、To realize operation of combined network between nitrogen system and air system, a scheme of adding gas crossover lines is employed.