要解决这些关键气动力问题，必须进行一系列相关的大型高速风洞试验，以及解决相应的试验技术问题。
To solve these key problems, it is essential to carry out high speed wind tunnel tests and deal with testing technical problems thereof.
试验在倒拖的单缸试验机上进行，采用了同步高速摄影技术。
The experimental work was carried out on a motored single cylinder test engine, using high speed simultaneous photography technique.
介绍了研制铰接式高速客车转向架构架的设计方案、关键技术及试验情况。
Described are the design scheme, key technology and testing for bogie frames in development of the articulated high speed passenger cars.
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