采场自燃发火危险预测方法与控制原理研究 关键词 综采 漏风 自燃 注氮 防灭火 [gap=1281]Keywords：Fully-mechanized mining，Air leakage，Spontaneous combustion，Nitrogen injecting，Fire
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nitrogen injecting technology 注氮工艺
injecting nitrogen system 注氮系统
injecting nitrogen 注氮气
nitrogen injecting
氮气注入
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Engineers said they were considering also injecting nitrogen into the number two and three reactors.
BBC: Japan quake: Nitrogen pumped into nuclear reactor
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