Otds
abbr. optical time division switching 光时分交换
🗣️ 情景例句
Excuse me, Mr. Carlson,
对不起 ，Carlson先生，
Of pigs and cows, the latter are more valuable.
在猪和母牛之间，后者比较值钱。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。