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

• Once we have a function, it is much easier to filter on different data sets and fluctuation thresholds.
  一旦我们拥有了一个函数，对不同的数据集和波动临界点进行过滤就简单多了。
• 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 studies the influence factors of the short-term fluctuation of cotton price in China by ARCH model.
  采用ARCH模型对我国国内短期棉花价格波动的影响因素进行了研究。
• 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 amplitude of wall temperature fluctuation is larger than that of fluid temperature oscillation.
  流量的波动又引起了管壁温度和流体温度的周期性波动；
• 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。
• Traditional macroeconomics believes that short-run fluctuation had no effect on the long-run economic growth.
  传统的宏观经济学认为，短期波动不会对经济的长期增长造成影响。
• 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。
• The aridity and the humidity effected the fluctuation of lake level and controlled the basin filling and sequence development.
  干旱和潮湿气候影响了湖平面波动，控制着层序充填和准层序叠置形式；
• 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。