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

• Stalagmite record revealed that Indian summer monsoon moved forward rapidly, and climate undulation on a century scale resulted in the change of the solar radiation.
  石笋记录揭示印度季风的快速推进或退出以及百年尺度上的气候波动是太阳辐射量变化造成的结果。
• The maximum difference of geoid undulation between the model and EGM96 ( to70 degrees) is2.
  该模型与EGM96相比（70阶次），大地水准面起伏差异最大为2。
• 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
• 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。
• 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；
• 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
• To swim butterfly correctly it is important to have mastered the body undulation and dolphin kick first before adding the arm movement.
  游泳是很重要的蝴蝶正确掌握身体的海豚式打腿前、岩面起伏及其裸露程度增加臂的运动。
• 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。
• A study on the displacement system of lunar rover and its undulation based on semi-turning mechanism;
  比较了一级半转机构和二级半转机构的起伏度，建立了月球车机构转杆正向运动学模型。
• The dolphin kick and body undulation exercises simply teach you how to learn the technique described above.
  海豚式打腿练习和身体的波动只是教你怎么学技术前述。