The NHTSA's exemptions mean the Transition can use the same tires it employed successfully during those 2009 air and road trials.

NHTSA给予的特别豁免意味着Transition可以使用在2009年应用成功的空陆两用轮胎。

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A taxi cab that runs on the latest hydrogen fuel cell technology is being developed with the aim of being ready for full road trials in time for the 2012 Olympics.

这款应用最新氢燃料电池技术的计程车正在开发中，目标定为2012年奥运会以前全面进行道路试验。

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Road in the distance, I still trials and hardships.

路在远方，我还在风雨兼程。

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So yet another result that the organisers hope will come out of the road trials is some way of simplifying this electronic control system.

ECONOMIST: Fuel cells hit the road | The

After a bumpy road through human trials--Enbrel flopped as a sepsis remedy before Immunex found the arthritis application--it won approval in late 1998.

FORBES: The Maverick and the Maestro

The authority said about one million people visited the county during the London 2012 road races and time trials in July and August.

BBC: London 2012 Olympic events 'raised ?44m' for Surrey