Idfg
abbr. intracavity CW difference frequency generation 内腔连续波差频振荡
🗣️ 情景例句
Generally speaking, it's quite a fair settlement.
大致上说，这样解决很恰当。
I'm a student.
我是学生。
He investigates complaints large and small that come to him from all levels of society.
他听取社会各阶层的各种大小意见，并进行调查。