The new definition of the beam propagation factor for partially coherent light is proposed through the propagation equations of the cross-spectral density.
并依据部分相干光的交叉光谱密度的傍轴传输方程，重新定义了普遍的部分相干光的传输因子。
This kind of beam needs more study on its propagation properties in dispersive media, as well as the beam propagation factor (originally called beam quality factor).
这种光束在色散介质中的传输特性与光束传输因子(即光束质量因子)都值得作深入的研究。
The concept of the beam propagation factor M2 is extended for chromatic laser beams. The definition of the beam propagation factor can be generalized with the weighted effective wavelength.
本文把激光光束的M2因子的概念扩展到了彩色激光光束，并定义彩色激光光束的M2因子为有效波长的加权平均。
The intensity factor decreases with the propagation of cracks.
应力强度因子随着裂纹的扩展而下降。
It is found that the stiffness and damping factor of coatings greatly influence the wave propagation and power flow.
分析结果表明阻尼层的刚度和损耗因子极大地影响圆柱壳中的波传播和功率流。
The new analytical element can be implemented into FEM program systems to solve for stress intensity factor and deal with crack propagation problems for plane cracks with arbitrary shapes and loads.
将该解析元与有限元相结合，构成半解析的有限元法，可求解任意几何形状和载荷的平面裂纹应力强度因子及扩展问题。
The Fourier amplitude spectrum used in a seismological model can be expressed as a product of source spectrum, propagation path factor and site effect in frequency domain.
在频域内，场地的地震动傅立叶幅值谱，可以表示为震源谱、传播路径影响因子和场地效应的乘积。
To investigate how to set the search window, the propagation delay, which is the most influential factor in setting the search window size during soft handoff, is estimated.
为了研究如何进行搜索窗的设置，对软切换中影响搜索窗宽度设置的主要因素传播时延进行了估计。
The beam propagation M2 factor is a useful parameter for characterizing laser beam.
光束传输M2因子是表征激光束的有用参量。
In addition, the quantity of gas that took part in the actual reaction is an important factor for understanding the propagation law of gas explosion.
另外，实际参与反应的瓦斯量是影响瓦斯爆炸火焰波传播规律认识的重要因素。
Building the radio propagation model on special frequencies is an important factor decided the mobile radio communication network whether or not to be put up successful.
在特定频段上建立无线传播仿真模型是决定移动通信系统无线网络搭建是否成功的重要因素之一。
The propagation of blast wave through the linear explosive charge is an important factor which influences the characteristics of the blast stress field induced by the linear explosive charge.
爆轰波沿装药轴线方向的传播是影响条形药包爆炸应力场特征的重要因素。
The energy release rate for crack propagation depends only on the stress intensity factor and the material constants.
电导通裂纹模型中的静电场对裂纹尖端扩展的能量释放率不作贡献。
The results show that reflection from rough sea surface is an important factor in calculating propagation loss over rough sea and a knife-edge in the presence of rough sea surface.
结果表明来自粗糙海面的反射是计算雷达波沿粗糙海面传播损耗和刃形峰对雷达波衍射损耗的不可忽视的重要因素。
Finally, combine with the writer's works, further quest in illustration the main factor of propagation and its regulations that figure and symbol have on TV art design.
最后，结合笔者作品实例进一步探索图形、符号在电视艺术设计中的传播要素及其规律。
It showed that extracts from animal gastric mucosa have bifidus factor which promote the growth and propagation of bifidobacteria.
证明胃粘膜提取物中含有促进双歧杆菌生长因子。
Experimental results indicate that the crack propagation is controlled mainly by the crack tip stress intensity factor range k.
结果表明，裂纹扩展主要受裂尖应力强度因子幅的控制。
Using the LFEM theory, the author provided the computing method of stress strength factor of crack and the criteria of crack instability propagation and propagation angle.
本文根据砂岩储层的物理力学特征，运用断裂力学理论，给出了储层裂缝的应力强度因子的计算方法，定量地分析了开发过程中储层裂缝失稳扩展的判据、裂纹扩展方向。
Plane strain fracture toughness (KIc). The critical value of the stress intensity factor (i. e., at which crack propagation occurs) for the condition of plane strain.
平面应变断裂韧性(KIc)：平面应变条件下应力强度因子的临界值(即达到该值时裂纹发生扩展)。
Plane strain fracture toughness (KIc). The critical value of the stress intensity factor (i. e., at which crack propagation occurs) for the condition of plane strain.
平面应变断裂韧性(KIc)：平面应变条件下应力强度因子的临界值(即达到该值时裂纹发生扩展)。
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