矩

Familiar fault conditions of DTC induction electromotion system and ITC induction generation system are analyzed. This makes a foundation for fault detect.

对采用直接转矩控制技术的异步电动系统，研究了两种有效可行的容错方案。

Two kinds of electron transition processes which lead transition metal complexes to show their colours were discussed.

讨论了导致过渡金属配合物显色的二种电子跃迁过程，只有当电偶极跃迁矩积分的被积函数的对称性允许时，才有可能产生颜色；分裂能的差别，导致跃迁能的不同，因而呈现出不同的视色。

The effects of the aspect ratios of the ellipsoidal cavity on the relative strengths of these dipoles and on the radiation patterns are discussed in detail.

文中详细分析了椭球腔的形状因子对地震矩张量元素和远场地震波辐射图案的影响。

Under the assumption that the Earth is a triaxial rigid body which is rotating freely in the Euclidian space, the elliptic integral solution of the Euler dynamic equation is provided, and then the numerical solutions of the Euler dynamic as well as kinetic equation are realized.

在Euclid空间中，假定地球是一个作自由旋转的3个主惯性矩互不相等的刚体，给出了Euler动力学方程的椭圆积分解，并实现了Euler动力学方程和运动学方程的数值解。

The physical model and mathematics are established in which the coupled influences with other systems and the ellipticity of roll, the diameter deviation of roll, and mechanical gap are considered.

针对电力拖动子系统本身的特点，本文对主提升子系统和电力拖动子系统之间的耦合进行了处理，即将电力拖动的输出转矩作为阶跃激励施加在主提升系统上。

Information such as attitude angle of aircraft is used to emendate the large-geometry-distorted image, so the research of this paper is based on the hypothesis that images used have small geometry distortion and invariant moment feature is used to reduce this distortion.

由于大的几何失真图像可利用飞行器本身信息进行几何校正，所以本文的研究都是基于小的几何失真这一假设的，并且利用不变矩特征来减小这种失真。

The kernel of this paper is to derive out the quantized operator of kinetic energy of thecollective motion of octupole deformed system.

本文的重点工作是研究八极形变内禀系的定义和导出量子化的八极矩动能表式。

The simulation results indicate that H_∞mixed sensitivity controller with PI current loop can improve the capability of low frequency noise enhancement and high frequency enervation in wide frequency band, and attenuate noise of torque sensor. The designed control system for EPS system exhibits good robust performances in assist tracking and anti-disturbance, greatly enhances the returnability, driver\'s steering feel, handling characteristic.

通过仿真结果分析表明基于PI电流环的混合灵敏度鲁棒H_∞控制器能在较宽频带范围内增强地面低频信号、削弱高频信号和抑制转矩传感器的噪声，所设计的控制器有较强鲁棒性，助力跟踪能力和抗干扰能力，能有效改善车辆的转向回正特性，提供给驾驶员较为满意的路感，提高车辆的转向操纵性能。

Centripetal Converter Blading Theory of sheaf flow of one dimension Entrance and exit Angle difference

七一一研究所；传动技术，，编辑部邮箱 1997年 01期向心式变矩器；叶栅；束流理论；进出口；角度差

Two novel spherical helical antennas can be designed by projecting the planar equiangular spiral antenna onto the surfaces of hemisphere and partial sphere. Their radiation properties are analyzed by the moment method with curved basic and testing function, and the curves of the VSWR, gain, polarization and pattern vs.

将平面等角螺旋天线投影到半球面和部分球面上，可得到两种新型球面螺旋天线，采用基于曲线基函数的矩量法对其辐射特性进行了分析，给出了天线的驻波、增益、极化及方向图等随频率变化的曲线。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。