Belit
[化] B盐; 二钙硅酸盐; B岩
🗣️ 情景例句
I must meet the deadline.
我必须赶上最后期限。
It's quite cold today.
今天天气相当冷。
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）。