tunnel carriage 中文意思是什麼
tunnel carriage
解釋
隧道開掘車-
When high - speed train enters into a tunnel, a series of aerodynamics effects such as pressure variation in carriage noises were created
摘要高速列車進出隧道時會產生一系列空氣動力學效應,引起噪聲及車廂內壓力的變化。
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