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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
        1. wavelike motion
          1. 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。
            • 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 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。
            • The effects of fabric micro structural parameters on elastic properties of woven fabric reinforced composites are investigated based on a two dimensional undulation model proposed by the author.
              根据作者提出的二维波纹细观力学模型,在考虑了实际织物结构中存在的经向和纬向纤维的波纹;
            • 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。
            • A broad and deep undulation of the ocean.
              海洋中一种宽而深的涌或波动。
            • 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 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;
            • 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。
            • 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。