角

Lastly, experimentations are carried out on Chaochai 6102BQ engine and the data of the thermal parameters according to different oil-apply lead angle is derived. The influence of the change of oil-apply lead angle on the rate of heat release is researched, then a reference is provided for building an accurate heat release model.

最后，在朝柴6102BQ柴油机台架上进行了试验，对不同供油提前角下柴油机的热工参数进行实机测试，对试验结果进行了处理、分析，研究了供油提前角的改变对放热规律的影响，为建立该故障下的燃烧放热模型提供参考。

A method of right angle auxilliary projection on an arbitrary plane is provided, by which the dihedral angle can be obtained directly.

提供一种在一般位置平面上的直角辅助投射方法，直接求两面角，具有概念明确唯一，作图方法简单，可以适应钣金划线工作中制造卡角样板的实际需要。

The cause and formation of the torsion angle of oblique supporting arm of radial gate in Dayuandu Junction are introduced.

介绍大源渡枢纽弧形闸门斜支臂扭角的起因及其形成，并推导斜支臂扭角的计算公式，论述斜支臂与支铰两种不同相接形式下斜支臂的受力情况。

In order to research the flow mechanics inside tube inserted with twisted-leafs discontinuously,a mathematical model for turbulent flow resistance was developed,and the influence of the twist angle α and the swirl angle β on the form drag was analyzed by numerical simulation.

为了研究管内间隔插入旋流片的流动机理，建立了流阻数学模型，通过数值模拟分析了旋流片的旋转角α和旋流角β对j(形体阻力与摩擦阻力的比值)的影响。

This ellipsometric method does not need to rotate the sample azimuthally. The physical parameters of sample are measured under various linear polarized lights through the numerical fitting to its theoretical model. In addition to the orientation of the first layer of nematic liquid crystal is considered, the total phase retardation and twist angle of twist Nematic Liquid Crystal cell are the physical parameters measured by this method.

本论文以椭圆偏极术为基础，在不需转动样本方位角的情况下，以不同偏振方向的线性偏振光入射样本，藉由出射光偏振态的变化，用数值方法拟合出样本矩阵模型参数；我们所量测的样本为扭转式液晶盒，其矩阵模型包含了三个参数：总相位延迟、扭转角及第一层液晶锚定方向。

Proposed a new method of determining the cell thickness and the twist angle of twisted nematic liquid crystal cells, a quarter-wave plate was inserted between the liquid crystal cell and the analyzer, a stepper motor rotated the Retarder by , and measured the light intensity of every modulated point, solved the stokes parameters of polarization light exiting from the liquid crystal cell using Fourier analysis method, thereby determining the cell thickness and the twist angle.

本文提出了一种测量扭曲向列相液晶盒盒厚与扭曲角的新方法，在液晶盒和检偏器之间放置四分之一波片，通过旋转此四分之一波片，测量各个调制点的光强，用傅里叶分析法计算线偏振光穿过液晶盒后的stokes矢量，从而求出液晶盒盒厚以及扭曲角。

The angular acceleration of a rotary shaft is one of the most important parameters for revolution mechanism, which is widely employed in practical applications.

转轴角加速度是旋转机构转动时的一项重要参数，旋转体的角加速度在实践中有着广泛和重要的应用。

This method can reflect the changes of mechanical angular acceleration in various rotating system, and it is suitable for the fields where the mechanical angular acceleration changes so quickly.

它可以直观地反映出各种旋转系统随时间变化的机械角加速度的变化情况，可应用于旋转系统机械角加速度快速变化的测量场合。

First, a program which can be used to obtain the encoder values of each joint D. C. servomotor and then change them into angular position is developed. By means of cubic spline, the angular velocity and angular acceleration are calculated.

本文开发了实时采集和转换机器人各关节的码盘值为角位移的程序，并提出了以三次样条函数求各关节角速度和角加速度的方法，提高了计算精度。

Research and measurement on the tightwires beat angle and angular acceleration of the trolley.

小车钢丝绳偏摆角及角加速度的测量研究；本文设计的智能电子防摇系统具有可行性、实用性、先进性和新颖性，其优点表现在： 1。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。