英语翻译Electricity The modern age is an age of electricity.Peop

英语翻译
Electricity
The modern age is an age of electricity.People are so used to electric lights,radio,televisions,and telephones that it is hard to imagine what life would be like without them.When there is a power failure,people grope about in flickering candlelight,cars hesitate in the streets because there are no traffic lights to guide them,and food spoils in silent refrigerators.
Yet,people began to understand how electricity works only a little more than two centuries ago.Nature has apparently been experimenting in this field for millions of years.Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.
All living cells send out tiny pulses of electricity.As the heart beats,it sends out pulses of record; they form an electrocardiogram,which a doctor can study to determine how well the heart is working.The brain,too,sends out brain waves of electricity,which can be recorded in an electroencephalogram.The electric currents generated by most living cells are extremely small -- often so small that sensitive instruments are needed to record them.But in some animals,certain muscle cells have become so specialized as electrical generators that they do not work as muscle cells at all.When large numbers of these cells are linked together,the effects can be astonishing.
The electric eel is an amazing storage battery.It can send a jolt of as much as eight hundred volts of electricity through the water in which it lives.(An electric house current is only one hundred twenty volts.) As many as four-fifths of all the cells in the electric eel's body are specialized for generating electricity,and the strength of the shock it can deliver corresponds roughly to the length of its body.

电力
当今时代是一个时代的电力.人们惯电灯照明,广播,电视和电话,这是很难想象生活会变成怎样,没有他们.当有一个电源发生故障时,人们摸索约在摇曳的烛光,汽车不惜在街头,因为没有红绿灯,以引导他们食物,以及赃物,在沉默的冰箱.
然而,人们开始认识到如何电力工程只有两个多世纪前.大自然似乎已试点在这一领域数百万年时间.科学家们发现越来越多的生活世界,可有许多有趣的秘密,电力可造福全人类.
所有活细胞发出微小脉冲的电力.由于心跳,它发出脉冲的记录;它们构成了一个心电图,其中一名医生可以研究,以确定如何以及心脏工作正常.大脑中,也发出了脑波的电力,它可以记录在一个脑电图.该电流产生的最活细胞,是非常小的-常常这么小,在这个敏感的仪器,需要纪录.但在某些动物的某些肌肉细胞变得如此专门为电动发电机组,他们这样做是行不通的,因为肌肉细胞都没有.当大量的这些细胞连在一起,其影响可以相当惊人.
电鳗,是一个了不起的蓄电池.它可以发出一个令人兴奋的高达800伏特的电力,通过水在它的生命.（电动府电流仅为120伏特） .多达五分之四的所有细胞中的电鳗的身体是专门用于发电,并加强了震动,它可以提供相当于大致长度,其体.