该无人驾驶工艺，它可以从一个机场的跑到起飞，没有外部火箭和两个引擎使用氢气和氧气来推动它进入太空超过18英里。
The unpiloted craft, which can take off from an airport runway, has no external rockets and two engines use hydrogen and oxygen to propel it more than 18 miles into space.
论述了粉煤加压纯氧气化工艺的特点、工业化过程、生产操作参数和主要设备。
The feature, industrialized process, operating parameters and main equipment for the pulverized coal pressurized and pure oxygen gasification process were discussed.
采用增加系统氧气压力的方法，研究了派生物合成的工艺条件。
The technology conditions for synthesizing the derivative compound was researched by means of increasing the oxygen pressure in the system.
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