夫琅和费...

fraunhofer的音标：fraunhofer的英式发音音标为：[f'rɔ:nhɒfər]fraunhofer的美式发音音标为：[f'rɔnhɒfər]...

Fraunhofer technicians can reduce air pressure inside, making ears pop , to mimic cruising at 35,000 feet.弗劳恩霍夫的技师们可以将机舱内的气压降低到让耳朵发胀的程度, 以模拟在35,000英尺飞行的状态.The Fraunhofer device depends on a temperature gradient: the grea...