undulation

英 [ˌʌndjuˈleɪʃn]

美 [ˌʌndʒəˈleɪʃn]

n.  波浪形; 起伏; 波动; 荡漾

复数：undulations　

医学

BNC.24577 / COCA.28179

牛津词典

noun

• 波浪形；起伏；波动；荡漾
  a smooth curving shape or movement like a series of waves

英英释义

noun

• (physics) a movement up and down or back and forth
  Synonym:wave
• wavelike motion
• an undulating curve
  Synonym:wave

双语例句

• Factor effecting injection quantity uniformity were briefly analyzed, and the undulation quantity and injecting pulse revising was put forth to meet the respective demand.
  简要分析电控喷油器的均匀性影响因素，提出了压力波动量控制的办法和喷油脉宽修正的办法满足小喷油量均匀性要求。
• This system have sensitive control high stability, little output HV DC undulation, high anti-interference.
  本系统控制精度高、稳定性好、输出直流高压的脉动系数小、抗干扰性强。
• Analysis and Adjustment on Undulation of Furnace Practice for No.6 Blast Furnace of Baotou Steel
  包钢6~高炉炉况波动的分析和调整
• But he could see the prisms in the deep dark water and the line stretching ahead and the strange undulation of the calm.
  但是他可以看见漆黑的海水深处的彩虹七色，面前伸展着的钓索和那平静的海面上的微妙的波动。
• Several pretty large logs may still be seen lying on the bottom, where, owing to the undulation of the surface, they look like huge water snakes in motion.
  湖底还可以见到一些很大的木料，却因为水面的波动，它们看上去像一些婉蜒的巨大的水蛇。
• The altimetry geoid undulation is mainly conducted by convergence between two or three plates, and its components at short wavelength characterize tectonics within basins.
  测高大地水准面反映了研究区板块相互作用的特点，其高频成分可以刻画各海盆的构造特征。
• Undulation machines represent a new dimension in human technology, indicating that human consciousness has become elevated to some degree.
  波动机器是人类科技发展的一个新兴领域，同时也意味著人类的意识层次已经有了某种程度的提升。
• The robustness problem in the aerodynamic optimization of an aircraft wing is discussed in reference to the undulation of aircraft performance derived from uncertainty factors.
  针对不确定性因素引起飞机性能波动的现象，探讨了机翼气动优化设计过程的稳健性问题；
• A broad and deep undulation of the ocean.
  海洋中一种宽而深的涌或波动。
• Compared with the same kind of tail balance technology, this technology can realize the dynamic balance, which decreases the motor load mutation and undulation, and makes the system run smoothly.
  与同类型的尾平衡技术对比可知，该技术可实现滚动动态平衡，从而降低电机负载突变波动，使系统平稳运行。