查询词典 angular derivative

Carried out generalized Mises yield criterion , yield curve on the n flat face was circle curve, and different elected parameters correspond to external angular point circumcircle、 internal angular point circumcircle and incircle of Mohr-Coulomb unequiangular hexagon. According to unequiangular hexagon, circle yield curve which had the same area as hexagon can be found, and corresponding yield criterionwas equilateral circle yield curve.

3广义米赛斯准则在π平面上的屈服曲线为圆曲线，选择的参数不同对应有莫尔—库仑不等角六边形的外角点外接圆，内角点外接圆和内切圆，对于不等角六边形，还可以找到一个面积和六边形相等的圆屈服曲线，对应的屈服准则为等面圆屈服曲线。

If a body is in the absence of any external torque, the angular momentum of the body is a constant. This is known as law of conservation of angular momentum.

如果物体所受的合外力矩等于零，或者不受外力矩的作用，物体的角动量保持不变，这个结论叫做角动量守恒定律。

Vector nature of angular momentum, precession, conservation of vector angular momentum (its transfer between parts of a system), nutation.

角动量的矢量特性，进动，角动量守恒(它在系统内部之间的转移)，章动。

In this paper, a performance index, which is used to evaluate the operating uniformity of multi-cyclinder engine, is presented based on the fact that the fluctuation of gas pressure in the expansion stroke cyclinder leads to the fluctuation of instantaneous angular velocity. The value IP is propotional to the fluctuation of instantaneous angular acceleration. Fuzzy diagnostic index for misfire fault is introduced and investigated also in this paper.

根据多缸发动机曲轴瞬时转速波动不均匀性主要由缸内循环气体压力波动不均匀性引起这一基本事实，以曲轴瞬时转速的实时检测为基础，在一个工作循环内按着火顺序将作功冲程中瞬时角加速度的波动作为评定各缸工作不均匀性的指标，将所得IP模糊化用于多缸机的故障诊断也作了初步的探讨。

The data were applied to simulate the neutron energy spectrum and angular distribution of Lanzhou University 3×10^12 s^(-1) intense neutron generator with 260 keV deuteron beam using MCNP. The interactions of neutron and the materials of neutron generator and laboratary wall were included in this MCNP simulation. The simulation results on the neutron energy spectrum and angular distribution of Lanzhou University 3×10^12 s^(-1) intense neutron generator with 260 keV deuteron beam were presented.

以分割法计算得到的能谱和角分布数据为基础，建立了D-T中子源Monte-Carlo模拟抽样模型，在考虑中子发生器各元件材料及实验大厅墙壁对快中子的慢化、散射和吸收的条件下，采用MCNP程序对兰州大学3×10^12s^(-1)强流中子发生器260 keV氘束流能量下的中子能谱和角分布进行了模拟，给出了模拟结果。

For radians, these functions are found in boost/units/cmath.hpp These behave as one expects, with trigonometric functions taking an angular quantity and returning a dimensionless quantity, while the inverse trigonometric functions take a dimensionless quantity and return an angular quantity

对于弧度，这些函数定义在 boost/units/cmath.hpp 。这些函数就像你想的那样，三角函数以弧度数量为参数返回一个无量纲数量，反三角函数以无量纲数量为参数返回一个弧度数量

Angular distribution for scatterings of 3He、4He、6He and 7He with hydrogen bromide molecules are calculated by using close-coupling approach from the anisotropic intermolecular potential of the He-HBr system established by the author. The calculations are performed separately at the collision energies of 60 and 100 meV. The influences of He isotope atoms on angular distribution is discussed in detail.

基于作者构造的He-HBr体系的各向异性势，采用密耦方法计算了碰撞能量分别为60和100 meV时3He、4He、6He和7He被HBr分子散射的角分布，详细讨论了氦同位素对散射角分布的影响。

Based on the finite element model of the sensor, simulations on the flux density distribution under different angular displacements were carried out, and the changing principal of the inductance of the sensing coil with the angular displacement was also discussed.

建立了有限元模型，在此基础上仿真分析了该电涡流角度传感器在不同转角下的磁场分布，探讨了其线圈电感变化的工作机理。

Based on the theory of dynamics and motion, the model for simulating the instantaneous angular speed in diesel engine is presented. The calculating software is developed with LabVIEW, the instantaneous angular speed is calculated and analyzed.

根据柴油机的动力学和运动学，建立了柴油机瞬时转速的计算模型，在LabVIEW软件开发平台上开发了仿真计算软件，进行了柴油机瞬时转速的仿真计算与分析。

Just as linear momentum is the product of mass and velocity, so the angular momentum of a body is defined as the product of its moment of inertia and its angular velocity.

这句话的意思是：正如线性动量是质量和速度的乘积一样，一个物体的角动量定义为惯性矩和它的角速度的乘积。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。