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Then the azimuthally phase and group velocity formulas of plane wave propagation in horizontal plane are deduced according to Christoffel equation, and the azimuthally dependent velocities in dry and water saturated cracked medium are calculated.

而后，根据Christoffel方程推导了由各向同性背景介质中含两组非正交的垂直裂隙而形成的等效单斜各向异性介质中，在水平面内随方位变化的相速度和群速度的计算公式，并对干裂隙和饱和流体填充裂隙介质两种具体情况进行了计算。

We extend the second order elastic tensor of Husdon's and turn it to a matrix which makes the calculation of second order perturbation much more concise. Then the azimuthally phase and group velocity formulas of plane wave propagation in horizontal plane are deduced according to Christoffel equation, and the azimuthally dependent velocities in dry and water saturated cracked medium are calculated.

而后，根据Christoffel方程推导了由各向同性背景介质中含两组非正交的垂直裂隙而形成的等效单斜各向异性介质中，在水平面内随方位变化的相速度和群速度的计算公式，并对干裂隙和饱和流体填充裂隙介质两种具体情况进行了计算。

These [Zn_4]~(2-)-groups as growth units could easily superpose on anodic plane of ZnO single crystals, but difficultly grow on cathodal plane of ZnO single crystals.

在蒸发自组装法制备中，由于嵌段共聚物F_(127)的的两亲性能，ZnCl_2发生醇解反应而形成的醇盐Zn_(2-x)_x互相结合而形成胶束。

Direct the needle caudally, parallel to the sagittal plane, at a 30° posterior angle with the frontal plane.

、控制针的方向，与矢状面平行，与冠状面成30°角

An image of the posterior fossa in the transaxial plane is obtained by angling caudally from the plane used to visualize the ventricular atrium.

后颅窝横切面的图像是由从用于显示脑室腔的切面向尾端偏角调节而获得的。

An image of the posterior fossa in the transaxial plane is obtained by angling caudally from the plane used to isualize the entricular atrium.

后颅窝横切面的图像是由从用于显示脑室腔的切面向尾端偏角调节而获得的。

We apply the results in Chapter 2 to the equitable list coloring of graphs and prove that a graph G is equitably △-choosable if G is a plane graph without i-cycles, 3 ≤ i ≤ 5, or a plane graph without 4-cycles(or 5-cycles) and 6-cycles.

从而得出不含3-圈，4-圈和5-圈的平面图和不含4-圈(或5-圈)和6-圈的平面图GΔ(G≥6均有一个Δ-均匀列表染色。

The length of facial nerve in the perpendicular paragraph was about (10.58±1.20) mm, the length from facia nerve to the surface of mamillary process in the plane of facial nerve and round window niche, from facial nerve in the eminentia papillaris to chorda tympani nerve, from horizontal semicircular canal to the plane of facial nerve paragraph .and from chorda tympani nerve to foramen stylomastoideum were (11.90±1.80) mm,(3.79±0.45) mm.

面神经垂直段长度为(10.58±1.20)mm，面神经圆窗龛平面到乳突表面，面神经锥曲段到鼓索神经、水平半规管到面神经水平段以及鼓索神经起点到茎乳孔的距离分别为：(11.90±1.80)mm，(3.79±0.45)mm，(1.94±0.43)mm，(5.14±0.80)mm。

In light of Fresnel formula the author analyses the features of linearly polarized light reflecting on the surface of apparent medium,discusses the relationship between the circumrotation in the plane of vibration,changes of the light intensity and the angle of incidence,the orientation of the plane of vibration,and addresses the relationship between the swing,phase and the incident angle and medium.

自然光在分界面上反射的一些特点在许多光学教材[1，2]上都进行了介绍，本文根据菲涅耳公式和菲涅耳定律，分析线偏振光在透明介质分界面上反射时的一些特点，讨论反射光的振动面所发生的旋转及光强度的变化与入射角、振动面的方位之间的关系；进一步讨论在全反射情况下，反射光的振

In this project, two lenses are set coaxially and signals are detected on the back focal plane of the first lens and the combined back focal plane of the two lenses at the same time.

为了提高激光粒度仪测量宽分布范围粒径的能力，根据衍射原理，提出扩大测试动态范围的方法。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。