Zero-crossing detector
[计] 零交点检测器
🧩 词语组成解析
zero
['zɪro]
n. （数字）0;零度;
adj. 全无的，没有的;
v. . 聚焦，集中;
🗣️ 情景例句
I understand you used to be in the construction business,
听说你过去从事建筑业
When the fire started, I was writing letters.
当火起来的时候，我在写信。
My parents were visiting relatives, and my grandparents had decided to spend the day at home.
我父母走亲戚去了，祖父母打算那天在家呆着。