When they had set themselves over , i observ d , that the boat being gone up a good way into the creek , and as it were , in a harbour within the land , they took one of the three men out of her to go along with them , and left only two in the boat , having fastned her to the stump of a little tree on the shore 他们渡过河后，我发现小船已向上游驶了一段路程，进入了一个好像内河港口的地方。他们从船上叫下一个人来跟他们一块走，所以现在船上只留下两个人了，小船就拴在一根小树桩上。
Competition ability depend on some factors , and production quality is one of the key competition ability . competition of production quality is not only competition of end products and process control , but also competition of material quality . material quality directly effect products quality , and can decide whether a enterprise can be successful 企业的竞争力来自多方面,其中最核心之一为产品的质量,产品的质量竞争不再仅仅是成品质量、生产过程质量的竞争,竞争的重点已经向上游企业(即供方)原材料质量转移,原材料质量的好坏越来越影响到一个企业的兴衰。
We discuss the formation of the unidirectional links and their influence on the manet routing protocols such as dsr , dsdv , aodv . solutions are given to overcom e the problems , we analyze some of they and point out their limitations . in the third part , we show a new on - demand routing strategy supported unidirectional links , it use the two circuits route search algorithms to establish the route from the source node to the destination and backward with directions ; it transfer the route error messages from the backward positions to the forward positions one by one ; it apply the packet encapsulation technique to forward the packets through the unidirectional links and introduced the circuit path to transmit information from the forward node to the backward node 接着，指出在移动自组网环境中，单向链路的普遍存在，分析了它的产生原因、它对目前协议栈的影响；然后，我们给出了一种按需路由的自组网单向链路路由算法，它只有在需要路径的时候才维护路由，使用二循环路由寻径算法以建立节点间的路径，使用逐跳逆向传递的方式报告路由终断，使用封装广播的方式沿单向链路正向传输，使用报文封装方式支持单向链路下游节点向上游节点传递信息。
The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream . as the eddy impacts the impinging wall , a wave of pressure disturbance with certain frequency is induced . this wave then propagates to the upstream with high speed , and results in the overlap and amplification of the waves when the frequencies of them are close with each other 当前喷嘴流束中的不稳定扰动波在穿过腔内的剪切层时，剪切层对其有选择放大作用，形成涡环结构，剪切流动中涡环与碰撞壁撞击，在碰撞区域产生压力扰动波并向上游反射，在上游剪切层分离处诱发新的扰动的产生，当新扰动与原扰动匹配时，射流上游就被不断地受到周期性激励，腔内就产生流体自激振荡并在后喷嘴出口形成脉冲射流。
Through traditional supply chain , corporations inevitably suffer from information distortion and lag in time because of lack of information communication between each other , so that the demand information is gradually exaggerated from downriver to upriver of the supply chain and the competition power is weakened while the general storage of the supply chain is magnificently increased 摘要在传统的供应链上，企业之间由于相互之间缺乏信息沟通，因而会不可避免地产生需求信息的扭曲和时间上的滞后，往往使得需求信息在从供应链下游向上游传递的过程中被逐级放大，使供应链在大大增加整体库存水平的同时减弱了竞争力。
