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

• a series of waves in the hair made by applying heat and chemicals
  Synonym:permanentperm

双语例句

• 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。
• Design and Researching of an Intelligent Controller for Vaccum Permanent Magnet Breaker Based on Recongnition of Coil Current Wave
  基于线圈电流波形识别的真空永磁断路器智能控制器的研究与设计
• Objective To study the effect of early applied Nd-Fe-B permanent magnet on acupoints plus ultrashort wave for peripheral nerve paralysis.
  目的观察早期采用钕铁硼永磁体穴位贴敷加超短波治疗周围性面神经麻痹的治疗效果。
• Do you want a permanent wave or a cold wave?
  你想电烫还是冷烫？
• 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；
• The Optimum Logic Resolving Structure Research of Permanent Magnet Brushless DC Motor With Square Wave Current
  永磁方波无刷直流机最佳逻辑解析结构的研究
• The direction of magnetic field, the coil geometry and the frequency of the electromagnetic field determine the wave type of transducer. Then we select the permanent magnet and the track coil to stimulate the shear wave.
  因横波可作测厚的波型，根据外加磁场的方向、线圈的几何形状以及电磁场的频率能决定换能器产生的波型，选定了由永磁铁和跑道形线圈合理组合来激发所需的横波。
• 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；