propagation的例句大全

Studies on propagation technique of Hedera nepalensis var. sinensis

中华常春藤繁殖技术研究

This thesis made a study on the cutting propagation of one breed of Hedera helix in July and august to solve the problem of high mortality in summer industrialized production.

本文对洋常春藤品种白脉洋常春藤（Hedera helix‘pittsburgh’）在夏季7、8月份进行扦插繁殖进行研究，以解决夏季工厂化生产中存在的死亡率高的问题。

KEYWORDS: GIMS, ion source, anode layer, sputtering, TiN, ion plating, medium frequency, pulsed DC. Influences of solar flare bursts and partical precipitation on the lower ionosphere have been observed by means of VLF propagation effects at Zhongshan Station in Antarctica.

中文关键词：气离溅射、子源、极层流、射、化钛、子镀膜、频、冲直流。在南极中山站利用甚低频传播手段观测太阳耀斑爆发及极区粒子沉降对低电离层的影响。

An efficient propagation system was successfully developed by using Marina � � s Meristem as an explant.

以香石竹切花品种玛丽娜茎尖为外植体,成功地研究出该品种的高效繁殖体系.

Propagation and compression of high intensity pulse in GVP optical fibers

群色散光纤中高强度光脉冲传输与压缩的研究

Taking into account of the fourth-order nonlinear refractive index, we have obtained the soliton solution of the nonlinear equation which governs the propagation of optical pulse in group velocity dispersion ( GVP) single-mode fibers.

考虑非线性四阶折射率，推导了光脉冲在群色散单模光纤中传输的非线性方程，并得到孤子型解析解。

The propagation and transfotmation of GLB in a homogeneous medium is discussed.

讨论了类高斯光束在均匀介质中的传播。

The traditional theory of propagation of fatigue crack is transformed by the closure phenomenon of crackfatigue.

疲劳裂纹的闭合现象改变了传统的疲劳裂纹扩展理论.

Meanwhile , this work shows that crack propagation is limited and stable under cyclic compression.

研究表明,裂纹在循环压缩载荷作用下的扩展能力是有限的、稳定的.

The fracture procedure is a whole process of crack initiation, crack propagation and final fracture.

材料断裂过程为裂纹萌生 、 扩展和最后断裂过程,组织及实验条件对材料断裂有较大影响.

High-strength alloy steels can experience rapid crack propagation from stress corrosion under certain loading conditions.

高强度合金钢在一定的载荷下承受应力腐蚀会造成裂纹的快速扩展.

The rolling contact fatigue life was found to be markedly related the subsurface crack propagation angle.

理论分析和试验结果表明,接触疲劳寿命与次表面裂纹扩展角之间存在着明显的对应关系.

Fatigue lifetime of valve springs contains two parts: lifetime crack initiation and another for crack propagation.

疲劳寿命一般包括疲劳裂纹萌生寿命和裂纹扩展寿命两部分.

The Infrared Signature of a Moving Targets Based on Atmospheric Propagation Modeling

基于大气传输模型的动态目标红外成像仿真

Propagation laws of radiation wave in the low Z material

辐射波在低Z介质中的传播规律

Finally, we prove infinite propagation speed for the DGH equation.

最后我们证明了方程具有无限传播速度这一性质。

Blow up Criteria 、 Persistence Properties and Infinite Propagation Speed of Solutions to the DGH Equation

DGH方程解的爆破现象、持续性及无穷传播速度

Orthogonal Frequency Division Multiplexing ( OFDM ) has high spectrum efficiency and side-effect of multipath propagation.

正交频分复用 ( OFDM ) 技术由于具有较高的频谱效率,而且可以有效地对抗多径传输,已成为高速数据传输的关键技术.

In this paper, three optimized propagation algorithms for MRD are presented, D-M, ILS and LIS.

提出了关于MRD的3个优化传播算法：D-M，ILS和LIS算法。

Based on gradient descent rule, the BP ( Back Propagation ) algorithm is a local optimization algorithm.

bp 算法基于梯度下降原理,是一种局部寻优算法.