系统有两种工作模式，人工和自动，在每种模式下都可以提供自动防滞保护。
The system has two modes of operation, manual and automatic, and gives automatic anti-skid protection in each mode.
系统有断电工作保护功能，当电源线路被破坏或由于其他原因断电时系统备用电源仍能继续工作24小时以上，来电后将会自动充电。
Power system protection work, when power lines were damaged or for other reasons the system back-up power supply is still able to work more than 24 hours, calls will be automatically recharged after.
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