英语语法分析

The melody of the story won't be so euphonious and undulatory.

故事的旋律不会如此悠扬跌宕。

The distribution of the maximum depth of undulatory wears on the rails under the 4 wheels of the same bogie is different;

同一个转向 架4个车轮作用下形成的钢轨波磨最大深度波谷的分布是不同的；

To realize the undulatory control of the flexible fin, a locomotory model is analyzed and a distributed control structure is designed.

针对柔性长鳍特有的 波动控制问题，本文分析了柔性长鳍的运动模型，并设计了一种分布式控制系统结构。