undulation
英 [ˌʌndjuˈleɪʃn]
美 [ˌʌndʒəˈleɪʃn]
n. 波浪形; 起伏; 波动; 荡漾
复数：undulations
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
- wavelike motion
- an undulating curve
双语例句
- 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。 - 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 - 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。 - 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。 - A broad and deep undulation of the ocean.
海洋中一种宽而深的涌或波动。 - 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。 - 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； - In tries to move in the process, the oscillation amplitude and the electric current besides change along with the voltage undulation should be stable invariable.
在试运行过程中，振幅和电流除随电压波动而变化外应该是稳定不变的。 - 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。 - 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。