| 1. | The natural gas vehicle ( ngv ) develops quickly for its slight emission , economic , fuel extensive and safety . the liquified natural gas vehicle ( lngv ) , with its characters such as safety , economic , long mileage and good environment protection function , is a new generation of ngv , and starts becoming the developing direction of ngv 液化天然气汽车( lngv , liquifiednaturalgasvehicle )是以液化天然气( lng , liquifiednaturalgas )为燃料的新一代天然气汽车,具有安全、经济、续驶里程长、环保性能好的特点,开始成为天然气汽车的发展方向。 |