This paper uses Integer Linear Programming method for designing resilient WDM mesh networks . Two types of protection strategies , Shared-Path Protection and Shared-Link Protection , are used . The optimization objective is to minimize the total fiber lenght needed .

本文使用整数线性规划法对多光纤网状WDM网络进行抗毁设计，使用的保护策略为共享通道保护和共享链路保护，网络设计的优化目标是使全网铺设的光纤总长度最短。

Based on the experience of using plaster casts and splints , and measured lenght of forearm and circumference of wrist of 120 normal men and 60 cases Colles fracture patients . We have designed a new type of fixator the Colles fracture clamp .

通过总结夹板、石膏复位固定治疗经验并对120例健康常人及60例Coles骨折患者前臂长度、腕周径测量得出参数而设计出的Coles骨折夹，为验证骨折夹疗效。

The analysis results show that the energy loss is related with the lenght and the flow quantity of connective pipe , and cross sectional area ratio between the pipe and hydraulic accumulator , which will be helpful for the design and engineering installation of the hydraulic accumulator .

分析表明，液压蓄能器的能量损失与连接管道的长度、流量的大小、连接管道横截面面积与液压蓄能器横截面面积之比有关。研究结果对液压蓄能器的设计和工程安装有参考意义。

Based on the performance analysis of a particular node under the condition of large files transfer and the interaction among the nodes , this paper proves that the network will reach a steady state after a transient period and presents the throughput of each node in steady and transient state . The expression of the lenght of transient period is also given .

通过分析大文件传输时某一节点的性能及网络各节点的关联性，证明了网络经过一个暂态过程后将达到稳态，给出了各节点在稳态及暂态时的吞吐量、暂态过程长度的表达式。

it has been found that the early-stage bolting of Angelica sinensis was closely related to the seedling age and its lenght .

发现当归早期抽苔与当归苗令的长短、个体的大小有密切的关系。