liútǐdònglìxué
ㄌㄧㄡˊ ㄊㄧˇ ㄉㄨㄥˋ ㄌㄧˋ ㄒㄩㄝˊ
Simplified 流体动力学
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 流體動力學 and it comes back until you know it.