Pach
abbr. plane aberration-correcting holographic grating 平面像差校正全息光栅
🗣️ 情景例句
I'm not doing anything.
我没有要做什么。
Put (or Lay or Set) one's shoulder to the wheel.
出一把力。
Thanks very much. I must go!
谢谢，我必须走了。