permanent wave
英 [ˌpɜːmənənt ˈweɪv]
美 [ˌpɜːrmənənt ˈweɪv]
n. 同 perm; 卷发; 烫发
柯林斯词典
- 同perm
Apermanent waveis the same as aperm.
英英释义
noun
双语例句
- Experimental Research on Speed Regulation System of Rare-Earth Permanent Magnet Square Wave Brushless DC Motor
稀土永磁方波无刷直流电动机调速系统的实验研究 - Permanent magnet synchronous motor ( PMSM) in the system is driven with sine wave;
系统的永磁同步伺服电机采用正弦波驱动； - However, surface permanent magnet synchronous motor flux density waveform can be approximately simplified as a flat-topped wave rather than the sine wave which is different from the induction motor flux density waveform.
但是，与感应电动机的气隙磁密波形不同，表贴式永磁同步电动机的气隙磁密波形可近似简化为矩形平顶波而非正弦波。 - In the system of hybrid suspension with electromagnets and permanent magnets, a method of producing two complementary PWM wave with dead-time using CPLD is proposed.
研究电磁永磁混合悬浮系统中，利用CPLD产生两路互补、带死区的PWM波的方法。 - The rare earth permanent magnet brushless DC square wave motor is a new type of motor. With its high performance, the motor shows a broad prospect for further advances.
稀土永磁无刷直流方波电机是一种新型电动机，其性能优越，发展前景广阔。 - The factors affecting permanent magnet eddy current loss calculated by using FEM method have been researched. The magnetic vector potential wave, the density wave of eddy current and the distribution of eddy current are obtained.
研究了运用有限元计算永磁体涡流损耗的影响因素，得到了永磁体内的磁矢位波形、涡流密度波形和涡流分布。 - In this paper, the equivalent circuit of typical permanent magnet actuator is analyzed, and the excitation current wave is optimized under definite redundancy and demanded minimum impulse power.
首先，通过分析典型永磁操动系统等效电路，在一定的冗余下优化励磁电流波形，使所需的脉冲功率最小； - This paper deals with an AC servo system with permanent magnetic brushless motor driven by square wave current.
研究了方波电流驱动的永磁无刷电机交流伺服系统。 - An analytical solution shows that the Rare Earth Permanent Magnetic Brushless DC Motor which is studying in my laboratory can get a approximately square wave air-gap magnetic field density with well designed motor structure and well selected material.
分析结果表明：正在研发的稀土永磁无刷直流电动机可得到近似方波的气隙磁感应强度，从而有效减少力矩脉动，提高电动机出力，电动机结构设计和材料选用合理； - What would you like permanent, cold wave, or washed and dressed? She is permanently waved both as to hair and figure.
你要电烫，还是洗一洗做一做头发？她的头发与身材好象都是（电烫的）永久曲线。