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

• 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。
• 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
• 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。
• 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。
• Double driving and controlling apparatus media with permanent magnet is manufactured; reasonable regulating rotating velocity of upon and down driver can improve shape of meniscus, suppress surface wave, and stir molten metal.
  设计制造采用永磁体的双磁力驱动控制器，合理调节上、下磁驱动器的旋转速度可改善弯月面形状，平抑液面波动，搅拌内部熔体的作用；
• 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
• Hairdresser: Yeah. A lot of my customers love it. ( after shampooing) Do you want a permanent wave or a cold wav-e?
  美发师：是的，我的很多顾客都喜欢。（洗完后）您要电烫还是冷烫？
• A simple and high-performance brushless DC generator consisting of a controlled rectifying circuit and permanent magnet square wave motor is presented.
  提出了一种可控整流电路，它与永磁方波电机联合构成一种简单、高性能的无刷直流发电机。
• 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；
• 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。