kōngqìdònglìxué
ㄎㄨㄥ ㄑㄧˋ ㄉㄨㄥˋ ㄌㄧˋ ㄒㄩㄝˊ
Simplified 空气动力学
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 空氣動力學 and it comes back until you know it.