查询词典 refraction angle

At the same time, some factors such as cohesive strength, internal friction angle, slope angle of slide plane, groundwater level and earthquake intensity are analyzed. Different sensitive degrees with assurance factor are obtained. The mathematical models are simulated for them. It supplies the theoretical basis for how to confirm stability of part of slope. This will offer some guidance for the practical engineering.

同时，通过研究粘聚力、内摩擦角、滑动面倾角、地下水位及地震烈度等影响因素对边坡安全系数的敏感性程度，得到了该边坡工程的主要影响因素，并通过岩体粘聚力、内摩擦角及地震烈度与边坡稳定性系数的关系曲线分别模拟出了它们的数学模型，对确定边坡某一具体位置的稳定性程度提供了理论基础，具有一定的实际指导意义。

The action point of limiting force on retaining structure is not always at 1/3 of the height of retaining structures, but varies with the friction angle δ between soil and retaining structures, the type of limiting state, the failure mode, the internal friction angle φ, and cohesion c of the soil, ranging from 1/5 to 2/3 of the height of retaining structures.

3土体极限荷载P〓的作用点位置不象Coulomb理论中假定的那样，总是作用在墙高的1／3处，而是与土体极限状态的类型、土体的破坏形式、墙土之间的摩擦角δ、土体的内摩擦角φ和粘聚力c有关系，在挡土结构物高度的1／5到2／3的范围内取值。

The mentioned control scheme can effectively control two joint of space manipulator to stably track the desired trajectory in joint space. It has obvious advantages that with needless feedback and measured the position, velocity, acceleration, attitude angle velocity and attitude angle acceleration of the floating base. At the same time, no requirements for the dynamic equations of the system are linearly dependent on inertial parameters.

文中提到的控制方案能够有效地控制漂浮基空间机械臂的载体姿态及机械臂关节，可以协调地完成期望的轨迹运动，并具有不需要反馈和测量空间机械臂载体的位置、移动速度、移动加速度，同时也不要求系统动力学方程关于系统惯性参数呈线性函数关系的显著优点。

A FDTD program was written and the electromagnetic fields for various polarized incident beams are calculated and the polarization states of the diffractive waves are extracted. The relation between the polarization state of the diffraction wave and the grating balzed angle and polarization angle for the linearly polarized incident wave is analyzed; In the spectral range of 1530 ~ 1570nm, the polarization dispersion is studied for the linearly and circularly polarized incident beam.

用时域有限差分程序计算出任意偏振方向线偏光经过闪耀光栅衍射后的电磁场分布，提取衍射波的S偏振和P偏振分量，分析它们与光栅闪耀角和入射光波偏振角的关系；分析在1530 -1570nm光谱范围内，入射光波为线偏振波和园偏振波时，衍射光波的偏振色散特性与光栅闪耀角的关系。

It also Introduces three optimum techniques for the machine model;manually removing redundant information;carrying out optimization with some softwares and algorithm and according to the change of link motion coordinate and angle,puts forward the change of link s coordinate realized by coordinate system nesting,and the change of link s angle realized by relative to driving link s ...

研究了手工清除冗余信息、利用软件优化和利用算法优化三种模型优化技术。根据机构的运动就是坐标和角度的变化，提出了坐标系统嵌套实现构件坐标的变化，用相对于原动件的角度关系实现角度变化的仿真方法。为工程技术人员解决此类问题提供了一种参考途径。

It is obtained that the heat transfer performance is the best for the louver angle at 24°, and the pressure drop increases with the increase of the louver angle.

对4种百叶窗倾角(15°，20°，24°，28°)进行了数值模拟，比较发现24°倾角的百叶窗翅片的传热性能最好，压降随着倾角的增大而增大。

In virtue of Fluent of CFD software, we carry though computation of aerodynamics of an air-to-air missile in different Mach meter and different attack angle and gained movement trend of lift coefficient、drag coefficient and pitching moment coefficient with variety of Mach number and attack angle, meanwhile, we also obtain distributing trend of pressure, temperature and weather velocity.

借助于商业CFD软件FLUENT，对某型空空导弹在不同攻角、不同飞行马赫数的气动力进行了计算，得出了该型导弹升力系数、阻力系数和俯仰力矩系数随飞行马赫数和攻角的变化规律以及导弹表面的压力分布、温度分布和来流速度分布。

The structure, component, morphology and magnetic property of the composites were characterized by X-ray diffractometry, Fourier transform infrared spectroscopy, transmission electron microscopy and vibrating sample magnetometry, respectively. The tangent value of magnetic loss angle and dielectric loss angle of the composites were measured by an impedance/material analyser with the frequecy in the range of 1 MHz～1 GHz.

利用X射线衍射仪、红外光谱仪、扫描电子显微镜和振动样品磁强计分别表征了样品的结构、形貌和磁性能，用阻抗/材料分析仪测定了复合物在1 MHz～1 GHz的频率范围内的磁损耗和介电损耗，并研究了聚苯胺和引发剂的相对含量对复合物的磁损耗和介电损耗的影响。

It has a standard measuring rule blade as well as an interchangeable unmarked blade that has a 45° angle on one end and a 30/60° angle on the other.

它有一个标准的测量规则刀片，以及作为一个可互换标志的叶片有一个45 °的角度对1月底和六十○分之三十〇°角对其他。

The knowledge-base contains four parts-cross curves of stability, metacenter height to base line, flooding angle and angle of deck immersion.

稳性知识库包括稳性横截曲线、横稳心距基线高、进水角和甲板边缘入水角四个部分，较好地解决了复杂知识的计算机表示问题。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。