1、

Three-phase voltage type PWM rectifier compared to the conventional diode-controlled rectifier or thyristor phase-controlled rectifier has the advantages of the sine of the net measured current, unity power factor, energy flow in both directions, the system can run in four quadrant.

三相电压型PWM整流器相对于传统的二极管不控整流或者晶闸管相控整流具有网测电流正弦化、单位功率因素、能量双向流动、系统可四象限运行等优点。

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2、

the dynamical response of head disk system to a half sine pulse excitation is analyzed by means of numerical method according to the dynamical equations of head disk collision under the shock excitation for the winchester type hard disk drive.

根据Winchester型硬盘驱动器在冲击载荷作用下头盘碰撞的动力学方程,利用数值模拟方法分析了在正弦半波激励条件下头盘系统的动力学响应过程。

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4、

Stator double fed sine phase moving stepless speed regulation asynchronous machine is a new type of speed regulation motor, it integrates motor and speeder system.

通过对定子双馈供电正弦移相无级调速电机的研究,得到了一种新型电机。

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5、

analysis of harmonic magnetic potential in new type dense-slot sine winding asynchronous motor

新型密槽正弦绕组异步电机的谐波磁势分析

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6、

on the solution of the linear sine-type difference equation

一阶线性正弦型差分方程的解的讨论

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7、

There are many differences between A & D's Sine wave Vibro Viscometer and the common rotational type viscometer.

正弦波振动式粘度计与旋转式粘度计有许多不同的方面.

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