When sucked up by a whirl of air, this unburned gas travels up the core until it reaches a region where there is enough fresh, heated oxygen to set it ablaze.
当这些未能燃烧的气体被气漩涡吸起，一直移动到核心处拥有足够氧气的区域，受热的氧气就会让这些气体燃烧起来。
The gasoline engine supplies power that causes the propeller to whirl. This fills the chamber with air.
汽油发动机供能后，螺旋桨便旋转起来，这就使气箱内布满了空气。
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