空中客车有一个未来主义的模块化概念，它包含一个乘客舱，可以从汽车底盘上分离出来，并由直升机式的机器接收。

Airbus has a futuristic modular concept involving a passenger capsule that can be detached from the road-going chassis and picked up by a helicopter-type machine.

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为了提高客舱内空气品质，引入了空气龄的概念并给出了由客舱内典型点的示踪气体的浓度求空气龄及通风效率的方法。

For improving the air quality, the concepts of age of air are introduced and the solutions of age of air and ventilation efficiency are obtained by using tracer gas concentration of…

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