1. Advanced Hoobkas, ua tshuab
2. Kev ntseeg tau thiab siv tau
3. Kev tiv thaiv ib puag ncig thiab txuag hluav taws xob
4. Humanization thiab automated system network tswj
5. Lub sijhawm thiab zoo meej tom qab muag kev pabcuam nrog kev lav phib xaub ntev.