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

• 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。
• Undulation in displacement monitoring curve of slope both reflect abrupt changes which nature and manpower bring about and reflect influence of ambient noise.
  边坡深部位移监测曲线中的波动现象既反映了自然活动和人工活动使边坡内部位移产生的突变；也反映了噪声对其造成的影响。
• This is normal as there is less leverage to execute the body undulation when the arms are kept to the sides.
  这是正常的，很少有杠杆执行时的身体波动武器被保持到两边。
• Effects of Rail Undulation Wear on Vehicle Vibrations
  钢轨波浪型磨耗对地铁车辆振动性能的影响
• 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；
• The undulation on the top curved surface is quite suitable for the shape of adults'hands, according with Ergonomics.
  因为是手持产品，在顶部曲面的凹凸起伏，充分适合成年人的手型，让人们在进行抓握动作的时候更符合人机工学。
• 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。
• When a gust of wind blows across the sea-like desert, the undulation of the sand has the shape of the wind imprinted on it.
  当万里长风吹过翰海，沙的起伏留下了风的形状。
• The difficulty is heavy, especially the undulation on the green, it is easy to get three putting.
  这里的果岭难度很大，起伏特别大，很容易三推。
• Some people have it easier to learn the dolphin kick and body undulation than others, and it seems that girls learn this motion faster than boys.
  有些人把它易于学习海豚式打腿和身体的波动，似乎比其他女孩比男孩学习这个动作快。