pulsation

英

美

n.  搏动；脉冲；脉动；间断；（交流电的）角频率

复数：pulsations　

GRE化学

BNC.37980 / COCA.27303

柯林斯词典

• VERB （有节奏地）搏动，跳动，震动
  If somethingpulsates, it beats, moves in and out, or shakes with strong, regular movements.
  1. ...a star that pulsates.
     一颗脉动的恒星
  2. ...a pulsating blood vessel.
     搏动着的血管

英英释义

noun

• the rhythmic contraction and expansion of the arteries with each beat of the heart
  1. he could feel the beat of her heart
  Synonym:pulseheartbeatbeat
• (electronics) a sharp transient wave in the normal electrical state (or a series of such transients)
  1. the pulsations seemed to be coming from a star
  Synonym:pulsingpulseimpulse
• a periodically recurring phenomenon that alternately increases and decreases some quantity

双语例句

• Acquisition and analysis of signals in tubular pump pressure pulsation test
  贯流泵压力脉动测试信号的采集及处理分析
• Research on Instant Flow Characteristic and Pulsation of Arch Gear Pump
  弧齿齿轮泵瞬间流量及其脉动特性研究
• The LPV direct torque control used a method of stator voltage space vectors subdivision to decrease the torque pulsation.
  结合定子电压空间矢量细分方法，可减少电磁转矩的脉动，实现了LPV直接转矩控制。
• Pressure pulsation similarity relationship between model and prototype Kaplan turbines
  轴流式原型和模型水轮机的压力脉动相似性分析
• It needs a reasonable explanation for the relation between such similarity and the tectonic pulsation.
  这种相似性与成矿构造脉动性的统一需要给予合理的解释。
• Research on Actual Flow and Pulsation of the Axial Piston Pumps
  轴向柱塞泵实际流量及脉动系数的理论研究
• Analysis of influence of PWM method on toque pulsation of six-phase BLDC;
  PWM调制方式对六相无刷直流电动机转矩脉动的影响分析；
• The result showed that the pump has the advantages of larger discharge and smaller pulsation.
  结果表明，该泵具有排量大、脉动小等优点。
• Reduced Torque Pulsation, thereby reduces noise in start-up and operation process.
  转矩脉动减少，起动和运行噪音更低。
• Dynamic analysis of blade based on the unsteady airflow pulsation
  基于非定常气流脉动的叶片动力学分析