查询词典 propagation

The spatial propagation properties of output annular laser beam from an unstable resonator are studied based on Fresnel diffraction integral.

本文从菲涅耳衍射积分公式出发研究了激光器非稳腔输出环状光束在空间的传输规律。

The generalized Huygens–Fresnel diffraction integral for misaligned asymmetric first-order optical systems is derived by using the canonical operator method, which enables us to study propagation properties of anisotropic Gaussian Schell-model beams through misaligned asymmetric first-order optical systems.

广义惠更斯-菲涅尔衍射积分为歪斜的非对称一阶光学系统中，推导出用典型算子方法，使我们可以研究繁殖性能的各向异性高斯夏伟模型光束通过失调非对称一阶光学系统。

Based on the transition propagation analysis of the basic unit of full adder, a kind of single input change BIST sequences is generated which has been designated to be more effective than multiple input change sequences when highly robust delay fault coverage is targeted in a series of previous theoretical and experimental results.

已有的理论和实践表明采用单跳变测试序列比多跳变序列具有更高的测试鲁棒性。

The multi-fracture propagating during the unstable propagation accounts for the phenomena of furcation at the ends of earthquake faults.

失稳扩展中多条裂纹系同时扩展是地震破裂中出现分叉和多点同时破裂的主要原因。

In the FWT test, not the interfacial debonding, but the interlaminar delamination was observed. So the test results show that the interfacial peel strength is higher than the interlaminar peel strength. From the results of DCB experiment, a different fracture mode, namely IKP (initiation of interlaminar delamination, kinking into facesheet and propagation of interlaminar delamination), was found.

在平面拉伸试验中，发现的破坏模式不是预期的面芯界面脱胶破坏而是面板层间分层破坏；在双悬臂梁试验中，发现了一种与以往文献报导中不同的破坏模式(面板层间分层，预制裂纹偏转和面板分层扩展依次出现)。

Series of experimental studies are carried out to investigate the propagation of an open surface-flaw in gabbro samples under compression load.

bstract 采用含张开型表面裂隙辉长岩试样，对单轴压缩荷载作用下预制裂隙的破裂模式进行一系列试验研究。

A series of experimental studies are carried out to investigate the propagation of an open surface-flaw in gabbro samples under compression load.

采用含张开型表面裂隙辉长岩试样，对单轴压缩荷载作用下预制裂隙的破裂模式进行一系列试验研究。

Sir Francis Galton showed that for statistical purposes -- the main bent of genetics until bioengineering came along -- the propagation of variation within populations could be considered to have a random origin.

高尔顿爵士证明，从统计学的角度——在生物工程学出现之前，统计学是遗传学的一个主流研究方法[1]——可以认为种群内部变异的遗传出自某一随机的源头。

The dissertation focuses on the phenomenon of wave propagation of piezoelectric periodical composite laminated plate. By using the motion equations and Gauss theorem cooperative with constitutive relations of piezoelectricity, the governing equations can be determined.

本文主要是要探讨压电周期叠层板波传现象，所以由本构方程式配合运动方程式和高斯定理以获得统御方程式，此等方程式在周期结构内具有平移对称关系，所以位移场和电位场的形式可以布拉克理论表示，进而得到代表周期结构行为的统御方程式。

By using Zernike polynomials to describe the wavefront distortion of beams, the propagation properties of the flattened Gaussian beams, super Gaussian beams, Gaussian beams and plane waves passing through an aberrated lens or an aberrated annular lens are studied based on the generalized Huygens-Fresnel diffraction integral.

以广义惠更斯—菲涅尔衍射理论为基础，采用Zernike多项式描述像差光束畸变波前相位，研究了平顶高斯光束、超高斯光束、高斯光束以及平面波通过像差透镜和环状像差透镜的传输。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。