Why Desert Sand Dunes Align in Parallel Ridges
沙漠沙丘为何呈平行脊状排列:风力与颗粒动力学
课文音频
Listen to the full story · 完整逐句/整段音频可在解锁后使用。
您仍可先看下方课文摘要;在阅读器可查看该书试读与权益说明。
课文
从第 4 课起,导读页仅展示部分正文,便于您了解难度与风格。
-
Desert dunes often form long, parallel ridges aligned with the dominant wind direction.
-
This pattern emerges because steady winds sort sand grains by size and transport them consistently.
Unlock full vocabulary & bilingual guide · 完整课文、逐句音频与全部译文请在解锁学习权益后于阅读器中查看。
Improve faster解锁本课完整体验