Phugoid motion
[化] 起伏运动
🧩 词语组成解析
长週期振动
motion
['məuʃən]
n. 运动;手势;动机，意向;请求;
vt. 打手势;向某人点头或摇头示意;打手势要求[指示];
vi. 运动;打手势;
🗣️ 情景例句
His number is five, five, five, seven, five, three, two.
他的号码是5557532。
It's two o'clock.
两点钟。
The old lady enjoys a quiet life with her family.
老太太和她的家人安享宁静的生活。