沃克

In China leading by the No.1 Motor Corporation and the Dongfeng Motor Corporation , Jiefang and Dongfeng brand cars possess the absolutely control role. The market ratio of China Heavy Motor Corporation and Beiqi Futian Motor Corporation is also increasing rapidly. Kreisler , Volvo and Renault Corporation all come into China. Modern and GE Corporation are also eying covetously.

国内重卡市场以一汽和东风为龙头，&解放&牌卡车与&东风&牌卡车占据着卡车市场的绝对统治地位；中国重汽和北汽福田市场份额的增长也非常迅猛；此外，戴姆勒－克莱斯勒、沃尔沃和雷诺已全部进军中国市场，韩国现代和通用也对中国卡车市场虎视眈眈。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。