Population inversion
[化] 粒子数布居反转; 粒子数反转; 布居反转
🧩 词语组成解析
inversion
[in'və:ʃən]
n. 倒置;（尤指词序）倒装;转化;（染色体的）倒位;
🗣️ 情景例句
Who has torn these pages out of the book?
谁撕掉书上的这几页？
Can you guess what I was doing this morning?
你能猜到今天上午我在做什么吗？
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。