zhíjiǎozuòbiāo
ㄓˊ ㄐㄧㄠˇ ㄗㄨㄛˋ ㄅㄧㄠ
Simplified 直角坐标
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 直角座標 and it comes back until you know it.