Nitrogen injection being used to enhance oil recovery in many oilfields, particularly in overthrust fault.
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3. 利用X射线光电子能谱（XPS）研究了注氮层中元素的深度分布和化学结构；
The composition depth profile and chemical states of nitrogen-implanted layers were determined using X-ray photoelectron spectroscopy (XPS).
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4. 利用傅里叶红外(FTIR)光谱研究不同温度rtp处理后的注氮硅中氮杂质的行为。
Fourier transform infrared spectroscopy (FTIR) is employed to characterize the nitrogen behavior in the as-nitrogen-implanted silicon and RTP-treated nitrogen-implanted silicon samples.
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5. 介绍了徐庄煤矿7235综放面开采中，采用埋管注氮方式向采空区注氮，防止采空区遗煤氧化自燃。
Nitrogen injection to the gob with buried pipes is used in 7235 full-mechanized caving mining face in Xuzhuang Colliery to prevent the left coal oxidizing and self-igniting.
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6. 模拟研究表明，在吞吐后期宜采取先注氮气、后注蒸汽的注入方式，并且存在一个优化的周期注氮量。
The results from reservoir simulation indicated that it is reasonable to inject nitrogen first and then steam at late steam soaking, and there exists an optimum nitrogen volume in a injection cycle.
The nitrogen injection pilot in Yanling oil field is for EOR of carbonate reservoir with bottom aquifer in high water cut stage under the cooperation with TOTAL French oil Company.
Directed at fire prevention in goaf, the paper proposes a method of injecting nitrogen and controlling nitrogen air to flow direction using fugitive air and controlling air quantity in gob.
In this paper, magnesium alloy AZ31 has been treated by nitrogen-plasma based ion implantation (N-PBII). And we deposited DLC on a part of the nitrogen-implanted samples.
Triton is so cold that most of its nitrogen is condensed as frost, making it the only satellite in the solar system known to have a surface made mainly of nitrogen ice.
Triton is so cold that most of its nitrogen is condensed as frost, making it the only satellite in the solar system known to have a surface made mainly of nitrogen ice.
