Chronotropic
[医] 变时[性]的
🗣️ 情景例句
Good night, Alexandra.
晚安，Alexandra。
I ought to stay at home.
我应该留在家中。
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）。