But now it turns out that with the right equipment, scientists can get light to go very, very slowly — as slow as 38 miles per hour.
但人们发现，使用合适的设备，科学家就可以使光行进得非常、非常缓慢——慢到每小时只行走38英里。
The devices generated roughly 160 microlitres of the hydrocarbons per hour per gram of their titania nanotubes, a rate at least 20 times higher than in previous studies done with ultraviolet light.
每克二氧化钛纳米管可以使这个装置大约每小时生成160毫升碳氢化学物。 这个反应速率至少要快于先前在紫外线下得到的结果20倍。
A roadway lane, for instance, could be closed off and used for a light-rail line that can carry more passengers per hour.
例如，一个机动车道可以被关闭用做轻轨，那样每小时就能搭载更多乘客。
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