查询词典 uniform velocity

The velocity of light in empty space always has its standard value, independent of the motion of the source or receiver of light.

光在空中的速度永远为标准值，它与光源及光的接受者的运动无关。

Every known wave spreads with some definite velocity, and so should a wave of light.

每个人都知道波是以某种确定的速度传播的，光波当然也是这样。

With application of plastic limit analysis method using finite element method, stability of high loess slope is analyzed and solved by using linear programming method in this paper. Safety factor and stress fields and velocity fields of slope can be obtained.

本论文采用有限元塑性极限分析法对黄土高边坡进行稳定分析，并运用线性规划的方法对稳定问题进行求解，可以得到边坡的稳定安全系数和边坡的应力场及速度场。

The limit on increment of probable error of muzzle velocity has been derived on the basis of that the increment will increase probable error of range and decrease probablity hitting the mark.

基于对初速或然误差增大所引起的射程或然误差增大和命中概率降低的限制，导出了对库存弹药初速或然误差增大的限制。

Firstly, several kinds of schemes were proposed according to the design demand. The best scheme was chosen after analyzing and comparing the schemes. The robot's structure was designed with Pro/Engineer and AutoCAD software. Secondly, the kinematics analysis conducted, coordinate transformation matrix using D-H method was set up, and the kinematics equation direct solution and inverse solution was deduced. The manipulative interface about the kinematics equation direct solution and inverse solution was completed with VC++ and the velocity Jacobian of displacement matrix was constructed using differential transform method. In the process of the trajectory planning based on robot's kinematics analysis, I propone a method by which we can get middle nodal point with normalizing factor in order to simplify our searching for these middle nodal points. In addition, I give these middle nodal points with actual physics signification. For eliminating contradiction between real-time and accuracy, I bring forward separately limit of error and reversal interpolation method. For decreasing calculation quantity, we resort to tri-spline interpolation in the articulation space.We analyse the work range of the robot by resorting to graphic means.

首先，作者针对机器人的设计要求提出了多个方案，对其进行分析比较后，选择其中最优的方案后用Pro/Engineer和AutoCAD软件进行了机器人模型结构设计；其次，进行了运动学分析，用D-H方法建立了坐标变换矩阵，推算了运动方程的正、逆解，运用VC++制作了正、逆运动学求解的求解界面；并且用微分变换法推导了速度雅可比矩阵；在基于机器人的运动学的轨迹规划中，通过在操作空间的规划，提出了归一化因子来求解中间结点，通过它可以使求解中间结点变得更简单，并且赋予这些中间结点实际的物理含义，对于规划中精确性和实时性的矛盾，提出了以误差极限法和反向插值法来解决的方法；为了减少规划过程中计算量，在关节空间进行三次样条插值；然后借助图解法进行工作空间分析，作出了实际工作空间的轴剖图。

The effects of radii of curvature of ellipsoids, surface entraining velocity, normal load at the contact point and the limiting shear stress on the distribution of pressure, profile and thickness of oil film, three dimensional shear stress and traction coefficient have been studied.

三、分析比较了弹流润滑过程中润滑油和牵引油的各种流变模型，首次采用了四次方型粘塑性流变模型来描述润滑油在弹流润滑过程中的流变特性。

Advantages such as high production ability fast reaction velocity and low exhaustion are also proved in research.So it is one of the most advanced technology of hematite、siderite and limonite magnetizing roasting.

该工艺具有单位体积产能高，反应速度快，能耗低等优点，是赤铁矿、褐铁矿、菱铁矿磁化焙烧的先进工艺。

Since Doppler weather radar can detect the radar echo reflectivity factor and the radial velocity of precipitation at the same time, it has considerably deepened our understanding of the physical mechanism of precipitation and the rainstorm dynamics, and can largely improve the warning and nowcasting capacity of rainstorms, hails, squall line and tornadoes with its wide use.

多普勒天气雷达能够同时测量降水的雨强分布和目标的运动速度，使得人们在降水物理和风暴动力学方面的认识有很大提高，它的广泛使用会大大改善暴雨、冰雹、雷雨大风和龙卷等灾害性天气的警戒和短时预报能力。

The purpose of this laboratory activity is to study the relationship between position, velocity, and acceleration in linear motion.

本实验的目的是研究直线运动中位置、速度和加速度的关系。

The displacement,velocity and acceleration of linear motor could be measure simultaneously by this system,and the transient response time could also be determined.

系统能够同时测量并绘制出超声电机运行过程中的位移、速度和加速度曲线，方便确定其响应时间，且具有实现简单、操作方便、易于扩展等特点。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。