填补了我国大型公交车用高档CNG单燃料发动机的空白。
The engine is the first advanced CNG mono-fuel engine for large bus in China.
将来的电力传送带将首先为大型公交车使用，然后再应用到小型电动车。
Future power strips will be designed big enough for use by large buses at first, then by smaller online electric cars later on.
这个计划还提出用1,310个使用清洁技术的大型公交车替换613个老式和污染的小型公共汽车。
The plan also calls for replacing 613 old and polluting public minibuses with 1,310 large clean technology buses.
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