| 錯誤具體提示信息： | |
| 這篇文檔需要 注冊會員 才能訪問，你目前是：游客或沒權限會員 ！ | |
| 文檔標題： | Key Services |
| 發(fā)布時間： | 2012-09-05 21:09:39 |
| 文檔簡介： | In developing the TETRA standard to meet the needs of traditional PMR user organisations, numerous services and facilities have been provided. Details of all the TETRA services and facilities can be found in the About TETRA Section under T |
