The triplets have been named

Ju Xiao’s triplets have been named at the Chimelong Safari Park in Guangzhou.
First born cub, female, Meng Meng 萌萌
Second born cub, male, Shuai Shuai 帅帅
Third born cub, male, Ku Ku 酷酷

Source: http://weibo.com/xjzoo