Idfg
abbr. intracavity CW difference frequency generation 内腔连续波差频振荡
🗣️ 情景例句
The name is Stewart, Richard Stewart.
失主是Stewart Richard Stewart。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line.
他发现了缠绕在16，000伏高压线上的一条死蛇。