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

• 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。
• He directed plans for a permanent barrier in the West Bank; that wall is credited by some with helping stop the wave of suicide bombings by Palestinians in Israeli cities.
  在他的指导下出台了在西岸兴建永久性壁垒&隔离墙的方案。一些人认为，隔离帮助阻止了巴勒斯坦人在以色列城市发起的自杀式炸弹袭击浪潮。
• 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 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
• 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；
• 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。
• 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
• 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；