Therefore, this paper design the gas lift technology method fitted for deep wells using nitrogen.
为此，本文建立了一套深井氮气连续气举工艺设计方法。
It was at the exact moment he took a deep breath that he began to lift off the ground.
就在这时，他深吸了一口气，开始从地面飞起来。
It was at the exact moment he took a deep breath that he began to lift off the ground.
就在这时，他深吸了一口气，开始从地面飞起来。
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