optimum length meaning in Chinese
最佳长度
Examples
- The relation between the length of pile and settlement and the relation between the distance of pile and settlement are worked out , which provide thereunder for optimization , then the optimization of djm pile composite foundation is done by means of ansys , the optimum length of pile and the optimum distance of pile are educed
着重对复合地基的沉降与桩长和桩距的关系进行研究，为优化设计提供理论依据。在此基础上，利用大型有限元分析软件ansys的优化设计功能对复合地基进行优化设计，求出复合地基的最优桩长和最优桩距。 - We firstly summarize the development of yb - doped fiber lasers , pumping methods and the applications of high - power fiber lasers . 2 . considering the scattering loss , we deduce the relationships between laser performances of yb - doped double - clad fiber laser and parameters of laser cavity from the steady state rate equations , numerically analysis the changes of laser performances , such as laser power with the parameters of laser cavity , including output mirror reflectivity , optimum length of double clad fiber
研究主要内容包括如下几个方面:一、首先对掺镱光纤及掺镱光纤激光器的发展状况、包层泵浦技术和高功率光纤激光器的应用等进行了综述;二、在前人对高功率双包层光纤激光器的理论基础上,在考虑了光纤散射损耗因子的情况对光纤激光器理论进行了推导,给出了准解析解,进一步完善了理论分析。 - In addition , this paper selects the water traveling wave model of the surface irrigation , and realizes the modeling of the water movement , according to the water movement characteristics of surface irrigation . furthermore , the optimization model for irrigation effects is used to produce the calculation pattern in which the water movement model is combined with optimization of technical parameters of irrigation . therefore , it is realized that the optimum unit discharge is calc ulated under the condition of definite length and slope of border check and the optimum length of border check is calculated under the condition of definite unit discharge and slope
与此同时，在分析项目区耕作条件下灌溉水流运动特点的基础上，选择地面灌溉水流运动波模型，实现了地面灌溉水流运动的数值模拟，并利用灌溉效果优化模型，构造了地面灌溉水流运动模拟与灌水技术参数优化相结合的计算模式，实现了定畦长、定坡降条件下的优化单宽流量求解和定单宽流量、定坡降条件下优化畦长的求解，为变灌水条件下优化灌水技术参数的确定提供了强有力的工具。 - We numerically analysis the changes of laser performances , such as laser power , with the parameters of laser cavity , including output mirror reflectivity , optimum length of double clad fiber , the cavity loss and concentration values of the fiber . these results are very important when optimizing the structure of a double - clad fiber laser . the variation of the temperature , stress , refractive index and laser efficiency of a high power double clad fiber laser due to the thermal effects is theoretical analyzed by using thermal conduction equations
由激光器输出特性准解析表达式出发详细分析了掺yb3 +双包层光纤激光器输出功率、泵浦功率、光纤的最优长度等参数与后腔镜对信号光反射率r2 、对泵浦光反射率r3 、双包层光纤掺杂浓度等结构参数的关系,并进行了数值模拟,模拟结果表明,激光器的性能参数受其结构参数的影响很大,为优化设计双包层光纤激光器的结构提供了理论依据。