第一段的段首句是讲电已经成为人们现代生活中必不可少的部分，因而接下来的续写部分应强调它的重要性。
Ever since early this century, electricity has become an essential part of our modern life. It has played a decisive role in the modern world.
体积小、重量轻，节省铜与钢耗材，电效率高，一次充电可续路程长，爬坡性能强。
Volume small, weight light, saves the copper and the steel consumes the material, the electricity efficiency high, a charge may continue the distance long, the hill climbing performance is strong.
研究了冲击电流波形对开关型电涌保护器（SPD）的工频续流的影响。
The influence of impulse current waveform on 50 Hz continuous current of switching type surge protective device(SPD) was studied.
研究了冲击电流波形对开关型电涌保护器（SPD）的工频续流的影响。
The influence of impulse current waveform on 50 Hz continuous current of switching type surge protective device(SPD) was studied.
应用推荐