Compared with high voltage 220V, the DC low voltage is more secure, not easy to be thunder attacked, avoidence of transfusion on the long-distanceline.
与220V交流高压电相比，不易引发雷击，无长距离线路传输上的弊端。
2
Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed.
如果建设新的长途光纤通信网络，Light-line 将是最大的受益公司之一。
3
By this time the moon was shining brightly, and the engine - driver, steadying himself on the coal, could command a view of the line behind them for a longdistance.