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 optical storage mechanism was analyzed in term of the fluctuation curves of grating growth and decay.
  结合光栅生长曲线的波动现象，对光存储机制进行了新的探讨。
• 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 Fluctuation of China's Macro-economy: Internal Adjustment or External Shocks?
  中国宏观经济波动：内部调整还是外部冲击？
• Using this approach, we can abstract from fluctuation in Aggregate Demand.
  运用这一方法，我们可以抽掉总需求中不断变化的因素。
• 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 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 is an11-year fluctuation in sunspot numbers.
  这是一个11岁的波动太阳黑子数。
• 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。
• Cyclic fluctuation is a common phenomenon in the economic development.
  周期波动是经济发展过程中的常见现象。
• 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。