Dipole
n. 双极子, 偶极\\n[化] 偶极
🏥 医学释义
偶极，偶极子
🗣️ 情景例句
It probably means we can't stay.
看来我们不能待在这儿了。
I don't think it's four o'clock yet.
我认为现在还不到四点。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。