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
Too noisy to study.
太吵了书看不下去。
To chase the thief
追踪小偷
If you are lucky enough to get a sleeper, you spend half the night staring at the small blue light in the ceiling, or fumbling to find you ticket for inspection.
即使你走运弄到一个卧铺，夜间有一半时间你会盯着车顶那盏小蓝灯而睡不着觉；要不然就为查票摸索你的车票。