n. 波动;波荡
网络 波状起伏; 小幅坡地起伏; 地表起伏
The hands at the sides allow for easier body undulation.
手在体侧时可让身体的波动更容易些。
Would you the undulation of one wave, its trick to me transfer.
倘若你肯将一个波浪起伏的绝技传授给我。
Periodic pressure undulation may be incited by fast valving control.
使用快关调节阀控制能激励周期蒸汽压力脉动。
So that´s it, these are the 11 drills to learn the body undulation and dolphin kick!
原来如此,这些都是11演习,学习身体波动和海豚踢!
It will help the stroke if you can make you body lift and drop, it is called undulation.
如果你能使你的身体上来下去的话,将有助于你的划动。