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 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 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
• This system takes the permanent magnetic motor of square wave current regulated ( The Brushless DC Motor) as control object and realizes speed& current double closed loop control.
  该控制系统以方波电流控制型永磁交流伺服电动机（多称为直流无刷电动机）为控制对象，采用转速、电流双闭环控制。
• 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
• 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。
• 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；
• 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。
• 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。
• 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 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。