propagation ratio
英
美
网络 传播比
双语例句
- Based on some theories of plane elastic wave propagation, the transmission model of weak intercalations for P wave fields is established and used to analyze propagation properties varying with incidence angles, depth, impedance ratio of the weak intercalations.
为此，基于固体弹性波传播理论，以平面P波为例，建立了弹性夹层对平面矢量波的透射模型。 - A numerical analysis is presented in terms of finite element of hybrid-mode propagation characteristics in microstrip transmission lines, which include characteristics impedance, velocity ratio, dispersion characteristic and the effect of strip thickness. The results of calculation are compared with previous approximate calculations.
本文应用混合模有限元方法分析和计算了微带传输线的各种特性，包括特性阻抗、速度比、色散特性以及带厚的影响，并与有关文献结果作了比较。 - A three-layer back propagation ( BP) network is proposed using the history data of loads and correlative factors as exemplar. An elimination based method and variance ratio test based method are used for selecting inputs for the proposed ANN.
构造了具有三层结构的BP网络，以历史负荷数据和相关影响因素数据为训练样本，采用排除法和方差比检验法对预测器的输入变量进行选择。 - Cost-231 propagation model is used to calculate the path loss of the system and using the Friis formula signal to noise ratio is calculated.
本论文应用Cost-231传输模型计算系统的路径损耗，使用Friis公式来计算信号噪声比。 - The simulation using the bi-directional beam propagation method proves that the demultiplexer can have very low insertion loss and high isolation ratio.
藉由双向光束传播法来模拟此元件，结果显示此解多工器具有很低的插入损耗和高的隔离度。 - Differences of sixteen cultivated Cymbidium hybridum orchids in bud propagation ratio were studied.
研究了16种基因型大花蕙兰芽增殖快繁繁殖系数的差异性。 - The propagation of behaviors has strong dependency on the ratio of the depth of the surface crack and the specimen.
表面裂纹的扩展特征强烈依赖于预制裂纹的切割深度和试样厚度的比值。 - It has been found that the crack propagation ratio obtained in the case of gradually increasing loading is smaller than that resulted from one-time loading.
在实验中还发现逐次从小载荷循环增至大载荷循环的裂纹扩展速率比一次加载明显减慢。 - Propagation effects of solar cosmic rays ( iii)& influence on the ratio of hydrogen to helium
太阳宇宙线的传播效应（Ⅲ）&对氢氦比的影响 - The transverse wave propagation in carbon nanotubes/ polymer composites laminated structures under ultrahigh frequency ( about 1THz) was studied based on the multiple-elastic-beam model. Effects of the volume ratio and chiral vectors of carbon nanotubes on transverse wave propagation were analyzed.
通过多层弹性梁模型研究了碳纳米管/聚合物复合材料层合结构在高频率（1THz左右）下的横波传播，分析了碳纳米管的体积分数和手性对其传播的影响。