求翻译：今年我市一共将更新700台公交车，这些车辆将更注重环保，其中有127台是油电混合车辆。在条件允许的时候，将会试验性地投放纯电动公交车辆。是什么意思？

Will be updated this year, a total of 700 city buses, these vehicles will be more emphasis on environmental protection, which is a hybrid vehicle 127. When conditions allow, will be tentatively put electric buses.

This year, I will update a total 1,700 city bus, the vehicles will be more emphasis on environmental protection, of which there are 127 taiwan electric hybrid vehicles is oil. Where conditions permit, to the pilot, in time, would be injected pure electric public transport vehicles.

My city altogether will renew 700 public transportations this year, these vehicles will pay great attention to the environmental protection, including 127 will be the oil electricity mix vehicles.Permits in the condition, will be able experimental to put in the pure electrically operated public tran

This year a total of 700 buses will be updated in our city, these vehicles will pay more attention to environmental protection, of which 127 were petrol-electric hybrid vehicles. When conditions permit, will be a pilot launch pure electric bus.

Will be updated this year, a total of 700 city buses, these vehicles will be more emphasis on environmental protection, which is a hybrid vehicle 127. When conditions allow, will be tentatively put electric buses.