Instead of a petrol engine, with its widespread infrastructure of filling stations providing the security blanket, why not build new infrastructure to refuel cars with new, fully charged batteries?
遍布广泛的加油站为汽油发动机提供了安全保障，可为何就不能兴建新设施为汽车更换电池呢？
2
A numerical simulation is presented for 3-d filling progress of engine cylinder head casting.
应用数值模拟的方法研究了发动机缸盖铸造的三维充型过程。
3
Take off emission plug and engine oil filling cover.