With the development and progress of the society the yield and possession quantity of the conventional internal combustion engine ( mainly be gasoline-fueled and diesel-fueled ) is on the rise which entraps the environment pollution and energy shortage into a vicious circle .

随着社会的发展进步，传统的内燃机汽车（主要以汽油和柴油为燃料） 产量 和 保有量不断上升，使得环境污染和能源短缺陷入了恶性循环。

At present Jiangsu Province is still one of the major grain producers in China maintaining a higher level of unit yield and grain possession per capita . 2 .

目前江苏省仍是粮食主产省之一，粮食 单产和人均粮食 占有 量水平较高。