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

• The model was subjected to pulsation, vibration, free vibration and hammering tests in order to investigate its flexibility, frequency and damping characteristics.
  为了获得模型的柔度特性、频率、阻尼等进行了脉动试验、自由振动、锤击试验等。
• Drive by or as if by pulsation.
  推动或者有节奏的跳动。
• Analysis of Pressure Pulsation of Counter-rotating Ventilator Based on Unsteady Calculation
  基于非定常计算的对旋风机压力脉动分析
• Research and Realization of Vehicle Oil Coolers Fatigue Property Pulsation System Based on Fuzzy-PID Control;
  对螺旋扁管与普通直管在油冷却器中的污垢特性进行了对比实验研究。
• At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.
  在低频率（譬如每秒十次）时，所感觉到的是脉冲而非振动。
• Steady delivery without pulsation, little vibration and noise.
  输送液体平稳、无脉动、振动小、噪音低。
• Research on Hydraulic Accumulator Absorbing Pressure Pulsation in the AGC Hydraulic System
  蓄能器在AGC液压系统中吸收液压冲击的研究
• The analytical study on the gas pulsation and piping vibration in a natural gas pipeline was presented, based on which the measures are suggested to control the excessive vibration.
  对存在严重振动问题的某天然气压缩机的进气管路进行了气流脉动和管道振动分析，提出了管路调整措施。
• She only felt the pulsation in her own fingers, and withdrew her hand with a shudder.
  她感觉到的是自己手指上的脉搏，她颤栗地收回她的手。
• 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