The unpiloted Skylon has no external rockets, and its engines USES hydrogen and oxygen for propulsion.

“云霄塔”系无人驾驶，它没有外部助推火箭，其发动机靠氢氧燃料提供推力。

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The unpiloted Skylon has no external rockets, and its engines USES hydrogen and oxygen for propulsion.

“云霄塔”系无人驾驶，它没有外部助推火箭，其发动机靠氢氧燃料提供推力。

youdao