Chapter 4, according to the shortage of the algorithm provided in the chapter 3 and removing the influence of unsureness sensors information, a feasible mixed approach of path planning is discussed.

第四章针对第三章提出法缺点，排出不确定传感器信息影响，试验一种随机规与局部路径规相结合混合路径规方法。

Distribution channel is the important part of marketing, which has the nature of slow-establish process, long-term efficiency and unsureness of control.

分销渠业营销重要部分，具有建立过程缓慢性，建立后不易改变性，以及业对其难以控制性。