chuándòngjīgòu
ㄔㄨㄢˊ ㄉㄨㄥˋ ㄐㄧ ㄍㄡˋ
Simplified 传动机构
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 傳動機構 and it comes back until you know it.