求翻译：3. 电源反接保护和反接LED显示功能：针对客户在安装时曾经出现过接反电源线导致烧坏主板的情况，加上了保护和显示电路，电源一接反就可以看到，再也不会出现因此烧坏主板的情况了。是什么意思？

3 reverse power polarity protection and LED display function: for customers in the installation, there have been reversed when the power cord leading to burn out the motherboard, coupled with the protection and display circuit, the power one can see reversed, then Therefore, burn out the motherboard

3 * Power anti-received protection and anti-received LED display features: According to the customer when you install it once occurred received anti-cord lead to burn out of the motherboard, coupled with the protection and display of circuit, power supply, it can be seen that the anti-will no longer

3. The power source ties hands behind the back protects and ties hands behind the back the LED demonstration function: In view of customer when installment appeared has met the counter-power line to cause to burn out the motherboard the situation, as soon as in addition the protection and the displa

3. power reverse connection protection, and anti-LED display: for customers at the time of installation has occurred before connected reversely lead to burn out the power cable to the motherboard, added protection and display circuit, power supply connected backwards, you can see, then there will be

3. power reverse connection protection, and anti-LED display: for customers at the time of installation has occurred before connected reversely lead to burn out the power cable to the motherboard, added protection and display circuit, power supply connected backwards, you can see, then there will be