https://padlet.com/yajunliang1/h45xepxaxhavxddn What is your knowledge on this? en-us 2020-11-25 19:18:03 UTC 2025-12-10 10:45:26 UTC hello@padlet.com yajunliang1 https://padlet.com/yajunliang1/h45xepxaxhavxddn/wish/961245285 The requirements for data. ]]> 2020-11-25 19:38:56 UTC https://padlet.com/yajunliang1/h45xepxaxhavxddn/wish/961245285