基本参数

The ZOR uses the left-handed materialas unit cells,which is composed of complementary split ring resonators and series gaps.On the basis of traditional design,a bandpass filteris designed.And the method to determine the resonant frequency and susceptance slope parameter is proposed.

零阶谐振系统以互补分裂谐振环和一系列沟道组成的左手材料LHM（Left-Handed Material）为基本单元，在传统设计的基础上进行改进，得到适合具有严格设计要求的滤波器设计使用模型，并给出此零阶谐振系统的共振频率和导纳斜率参数的确定方法。

Based on this principle, the mathematical model of an exothermic reactor is established to caculate Exothermic reator length L corresponding to reation temperature T, reation temperature T corresponding to ammonia mole fraction y and the average internal reactor wall temperature Tave corresponding to exergy output Enet and thermal power output Q. The curves of L-T, T-y, Q/Enet –Tave are drawn with the caculated date which can directly reflect the influence of reactor inlet gas temperature and reactant flow rate on ammonia synthesis reaction for the reactor under the conditions of definite design pressure and hydrogen/nitrogen ratio. Furthermore, the design parameters to realize maximum exergy output and thermal output are presented.

文章分析了储能体系的选择，介绍了氨基热化学储能的基本原理，在此基础上建立了放热反应器的数学模型，计算和绘制出了L-T、T-y以及热量和佣输出与反应器内壁平均温度之间的关系曲线，直观地反映了在一定的设计压力和氢氮比条件下，进气温度和进气流率对放热反应的影响，给出了实现佣最优化和热能最优化的操作参数。

In numerical simulations, the results of parametric study on the influence of towline length, connection positions of tow ship and towed ship, ship speed to course stability and towline tension in clam water are discussed.

在静水中，针对拖缆长度、系缆位置和拖带船速等要素对拖带系统之航向稳定性及拖缆张力变化的影响进行参数分析，以了解此模式下系统之基本特性。

Transplanter has been through the whole structure of physical measurement, access to basic design parameters to optimize the design to meet their support needs.

通过对已有的插秧机整机结构实物测量，获得基本设计参数，进行优化设计以满足其支撑的需求。

According to the definition and the distribution of VSR's voltage space vector, the introduction of a rule-based SVPWM current control strategy, with non-fixed switching frequency and dual hysteresis loops, that obviously improves the performance of current control. Based on two kinds of control strategies of VSR under unbalanced grid condition, the introduction of a new VSR control strategy featuring undamped-oscillation that simplifies the controller structure and effectively improves VSR's performance under unbalanced grid condition. A systematic description of the state switching in trilogic PWM signal generation of threephase CSR by using the conversion between bilogic and trilogic switching functions.

作者在如下工作的基础上对PWM整流器的一些关键问题提出了自己的研究思路、观点和方法：根据PWM整流器网侧矢量关系，直观地描述了其四象限运行的基本原理及特征；定量分析了VSR、CSR的PWM换相过程及波形特征；引入等效变压器模型并详细分析了VSR、CSR基于d—q模型的动、静态特性；提出了满足四象限有功、无功运行指标时的VSR交流侧电感设计方法；并提出了依据控制系统跟随性和抗扰性性能指标设计VSR、CSR直流侧储能元件的参数计算方法；在研究了VSR电流控制策略基础上，提出了影响VSR电流控制的几个要素，并进行了定量分析；根据VSR空间电压矢量的定义及分布，提出了基于规则控制的不定频滞环空间矢量PWM电流控制策略，并由此提出了具有双滞环特性的不定频滞环优化SVPWM电流控制策略，有效地改进了滞环PWM电流控制性能。

Form scale parameter we can see that probability of precipitation of rain day become bigger on the middle and lower reaches of Changjiang River, and discrepancy between upriver and the middle and lower reaches of Changjiang River also become bigger, the other areas change unapparent.

两时段中国夏季雨日降水量概率分布的形状参数在无条件和分条件下值都小于1，且地理分布形式都基本一致。

According to permeability, associating with pore type, pore throat radium, ratio of pore throat radium, and connectivity of pore throat, the reservoir is divided into two groups: moderate permeability reservoir with moderate pore and small throat and low permeability reservoir. the latter is further classified into three types: moderate pore and small throat reservoir, small pore and unhomogeneous and subtle throat reservoir, and small pore and homogeneous and subtle throat reservoir.

在此基础上，以渗透率为主线，结合孔隙类型、孔喉半径、孔喉半径比以及孔喉连通性等参数，将研究区储层主要划分为中渗透储层和低渗透储层2种基本类型，前者以中渗透中孔细喉道型为主，后者又进一步细分为低渗透中孔细喉道型、低渗透小孔不均匀微细喉道型和低渗透小孔较均匀微细喉道型等3个亚类。

The propagation of elegant cosh-squared-Gaussian beams has been investigated and the analytic solutions have been obtained by means of an angular spectrum technique in uniaxially anisotropic crystals.

基于光束在单轴晶体中传输的角谱理论，对复宗量双曲余弦平方-高斯光束在单轴各向异性晶体中的传输作了研究，得到了一般的解析传输公式，并用数值的方法讨论了晶体内源于复宗量双曲余弦平方-高斯光束的两偏振分量的传输特性，结果表明，在适当参数的条件下，两偏振分量在晶体中的传输波形结构基本保持不变。

The regression analysis in view of a large amount experiment data were made and the effect law of the factors to the scour depth were obtained, the formula which take the unsubmerged straight ...

根据大量试验数据，并以不漫水板式正挑丁坝为基本研究对象，分析后得到了三个影响参数对丁坝冲刷深度的作用特点，建立了影响系数的计算公式。

As usee, This last sectionopens access to all basic latencyof memorysubsystem , it also allowto controlthe parameter command rate.

由于美国看到，这最后一节开幕享有所有基本潜伏期的内存子系统，它也允许以控制参数指挥率。

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。