Solution : https://service.sap.com/sap/support/notes/1096168 (SAP Service marketplace login required)
Key words : 
symptom missing zh text, standard sap translation solution, hr master data, input proper translation, prerequisites translation, infotype menu, longer supported, logon system, select enus, source language
Related Notes : 
       
| 1585647 | |
| 585116 | Translation after installation of WebAS SP25 |