On the base of experiments, this paper found the primary factor of caused atmospheric vertical refraction. A formula to calculate the angle of atmospheric vertical refraction is given.

The principle and processing method of ghost velocity-critical angle spectrum of seismic refraction

地震折射波的虚拟速度&临界角谱的原理与制作方法

Our task, in any given case, is to determine the angle of refraction.

不管在何种情况下，我们的工作就是决定折射的角度。

Total Optical Reflection and Angle of Refraction

光学全反射与折射角

METHODS The moisture absorption and angle of repose of powder and qualities of pellets were studied.

方法考察粉体的吸湿性、休止角，微丸的外观质量及溶散时限等因素。

Analysis on key problems in design of transit on slope with angle of repose for colluvial deposit

堆积体休止角边坡运输通道设计关键问题分析

Effect of height of a sandpile on the angle of repose

颗粒堆积高度对静止角的影响

Powders and granules-measurement of the angle of repose

粉末和颗粒-安息角的测定

Structure Optimization and Experiment on Disk-type Quick Tester of Angle of Repose for Grain

谷物休止角圆盘式快速测试仪结构优化与试验

The amount of adhesives was the main affecting factor of the angle of repose;

粘合剂用量是影响休止角和流动性的主要因素；

Evaluation of Directive Functions of Angle of Repose(α) on Mixing Process of Medicinal Powder

粉体休止角α对散剂混合工艺指导作用的探讨

Aluminium oxide powders& Measurement of the angle of repose

GB/T6521-1986氧化铝粉末安息角的测定

The method for fixing cone bottom was used to investigate the angle of repose.

采用固定圆锥底法，测定钠基膨润土休止角，考察流动性。

First of all, it put forward the method by designing suitable slope angle of the pitched roof that can save the planning place.

首先，指出了设计适宜的坡屋顶倾斜角度，可以节省规划用地的方法；

It is about twelve feet long, and its highest point is about five feet, and then it tapers2 down from the angle of the roof...

这间阁楼差不多有十二尺长，最高的地方有将近五尺，屋顶从尖角的位置向下延伸开来逐渐变得宽阔，就像圆锥那样。

From the control angle of roof stability in face area, UDEC program has been used in analysis of the relationship between the roof stability in face area, the working resistance of support and the distance to face under different top coal conditions.

从端面顶板稳定性控制角度出发，应用数值模拟离散元法分析了不同顶煤条件下端面顶板稳定性与支架工作阻力及端面距的关系。

By integrating the function, the shear force, bending moment and the angle of rotation of the whole beam are expressed by one equation respectively.

通过积分，全梁的剪力、弯矩、转角和挠度可分别用一个方程表示。

The general conclusion is derived by using the features that moment of inertia is a function of the angle of rotation and the function has extreme value.

该方法利用惯性矩是方位角的函数，且函数有极值的特征推出普遍性结论。

Based on 1D phase correlation, a method was proposed to obtain the angle of rotation by searching an angle ridge.

根据1D相位相关技术，提出了一种通过搜索角度脊来得到旋转参数的方法；

Modified Monte Carlo techniques by rotating slip segments for searching general critical slip surface(ⅰ): random angle of rotation

基于滑面段旋转的Monte Carlo搜索技术及改进（Ⅰ）：转角大小随机

The effect of transverse shear deformation is considered and angle of rotation of surface normal for each layer is different.

这类板的横向剪切变形效应必须予以考虑，因而层板不同层的表面法线的转角是不同的。