prius普锐斯在仅利用电动机驱动时对环境没有任何污染;而且在减速、制动和下坡时还能回收能量以供再利用;特别是当遇到红灯停驶时，发动机会自动停止工作，这将没有任何燃油的消耗!
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但是在620天的时间里开动了三个引擎之一——再积累每天60英里——曙光号就已达当前的天文速度，而且没有减速的计划。
But by firing its three ion engines one at a time over 620 days — accumulating another 60 miles per each day — Dawn has reached its current astronomical speed and has no plans of slowing down.
注意！决不允许在磨煤机内无煤，而且存在加载力的情况下运行减速机。
Caution: it is prohibited to operate gear reducer when there is no coal in the coal mill and loading force present.
研究表明，在减速器上制动不仅制动效果良好，而且减小了整机结构。
The study shows that the winch has better braking effect and smaller volume while the brake is placed in the gearbox.
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