1·They are exactly alike except that they have opposite electrical charges.
除了电荷相反外，它们完全一样。
2·They are exactly alike, except that they have opposite electrical charges.
它们完全一样，除了电荷相反。
3·What is needed for electrical charges to flow?
电荷流动需要什么条件？
4·It is triggered when electrical charges build up in storm clouds.
电荷在积雨云中聚积起来就会触发闪电。
5·We often compare the flow of electrical charges to the flow of water.
我们时常把电荷的流动比喻为水的流动。
6·We use insulators to prevent electrical charges from going where they are not wanted.
我们用绝缘体来防止电荷流到不需要电荷的地方去。
7·This energy is something like positive and negative electrical charges pulsating throughout.
这种能量就像正负电荷一样脉动着流遍全身。
8·Lightning is a discharge of electricity that occurs when excess electrical charges build up in clouds.
闪电是一种放电时所发生的电力过剩电荷建立在云彩之中。
9·Usually the capacitor is made up of plates of large area so that large electrical charges may be stored.
为了能储存大量电荷，电容器通常用大面积的金属板来制造。
10·Because they can store electrical charges, CCDs can be used as memory devices, but they are slower than RAMs.
由于电荷耦合组件能够储存电荷，它们可以当作记忆装置，但比随机存取内存慢。