Pach
abbr. plane aberration-correcting holographic grating 平面像差校正全息光栅
🗣️ 情景例句
Maybe you saw our commercials on TV.
也许你在电视上看过我们的广告。
Geographically,this country is located in the southern hemisphere.
这个国家在地理上位于南半球。
if you think what it must be like to share the deck of a ship with several squadrons of jet aircraft,
因此，如果你能想像出同在一个甲板上是什么滋味儿的话，和几个中队的喷气机。