On the way out, these gases drive a turbine which is connected to the fan via a shaft, thus drawing in more air and keeping the process going.
在喷管前有一组涡轮,涡轮与风扇连接在一根轴上。涡轮带动风扇又吸入了更多的空气,这样就产生了连续的循环。
Pawl is a simple device which allows a shaft to turn only one way.
掣爪是一种非常简单的只让转轴往一个方向转动的装置。
"We cut a hole in the shaft so you can see what the shaft is made from, and we introduced this new staircase that provides this theatrical way down," he said.
“我们在竖井里凿了一个洞,这样你就可以看到竖井是由什么构成,我们推出了这个新的楼梯,提供了一种戏剧性下降的方式,”他说。
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