fluctuation

英 [ˌflʌktʃuˈeɪʃn]

美 [ˌflʌktʃuˈeɪʃn]

n.  波动，涨落，起伏

复数：fluctuations　

CET6TOEFLIELTS化学

BNC.6226 / COCA.8463

柯林斯词典

• VERB 变动;波动;上下浮动
  If somethingfluctuates, it changes a lot in an irregular way.
  1. Body temperature can fluctuate if you are ill.
     人患病后体温可能会上下波动。
  2. ...the fluctuating price of oil.
     油价的浮动

英英释义

noun

• the quality of being unsteady and subject to changes
  1. he kept a record of price fluctuations
  Synonym:wavering
• an instance of change
  Synonym:variation
• a wave motion
  1. the fluctuations of the sea

双语例句

• The erratic fluctuation of market prices is in consequence of unstable economy.
  经济波动致使市场物价忽起忽落。
• Cross-regional factors flow's influence on the regional economic growth and fluctuation should be versatile.
  摘要要素跨区城流动对区域经济增长和波动的影响应是多方面的。
• In more than ten years the periodic fluctuation of China's macro economy operation is very obvious.
  近十几年来我国宏观经济运行周期性波动十分明显。
• A Study on the Effect of FDI's Flow on China's Employment under Economic Cyclical Fluctuation
  经济周期波动下FDI流动对我国就业的影响研究
• Venation wave spectrum analysis finds out shape-structure change of mid-frequency signal fluctuation.
  脉络波谱图分析查明了中范围（频率）信号波动的形态结构变化。
• In changeful wind conditions and load fluctuation maximizes the stability of shaft output.
  在风力和负载变化的情况下，能最大限度保持机械轴的输出稳定性。
• This paper presents the on line measurement of size, concentration and velocity of pulverized coal with light fluctuation and correlation method.
  该文介绍了结合光脉动法和相关测速法同时在线测量煤粉粒径、浓度和速度的技术和装置。
• The influence of timing jitter and amplitude fluctuation of the sampling pulses is also investigated.
  同时我们还研究了采样光脉冲时间抖动和幅度抖动对光性能监测系统的影响。
• A demodulating strain method that avoids light source's fluctuation and environmental factors is put forward.
  提出了一种不需要双光路信号就减小了光源波动及环境因素对测量的影响的解调应力方法。
• This ensures there's no electrical fluctuation within the car's systems and prevents a malfunction.
  这保证没有电波动车辆系统内，防止故障。