49 . the replacement system has deployed new equipment devices such as the full - page document reader and personal digital assistant for improvement of services 4 9 .为改善服务，新系统采用了新的设备器材，例如全页文件阅读器和个人数码助理等。
2.
The replacement system has deployed new equipmentdevices such as the full - page document reader and personal digital assistant ( pda ) for improvement of services 为改善服务，新系统采用了新的设备器材，例如全页文件阅读器和个人数码助理等。
