Carburetion is the mixing of the fuel ( usually gasoline ) with air to get a combustible mixture.燃料汽化是指燃料 ( 通常是汽油 ) 与空气的混合,以得到一种可燃混合物.Fuel is delivered in three common ways: carburetion port fuel injection and direct fue...
定期航班的数量正让空中交通指挥系统不堪重负。The volume of scheduled flights is straining the air traffic control system.他们发行一定数量的可公开交易的股票。They issue a fixed number of shares that trade publicly.有一些廉价的商品，但是数量不足以满足需求。Cheap goods are available, ...