木头是热和电的不良导体。
木头是不良导体。
金属是良导体，而银是最好的。
并非所有的金属都是良导体。
铜是电的良导体。
电阻很低的铜可用作良导体。
Copper whose resistance is very low serves as a good conductor.
问题是为什么金属是良导体。
布、木材和橡皮是不良导体。
除了铜，还有很多其它金属都是良导体。
In addition to copper, there are many other metals which are good conductors.
任意良导体均可作为屏蔽。
几乎所有金属都是良导体，以银为最好。
Almost all metals are good conductors, with silver being the best.
所有的金属都是良导体。
木头是声音的不良导体。
铜和银都是电的良导体。
金属是电的良导体。
几乎所有的金属都是良导体，银是最好的导体。
Almost all metals are good conductors, silver being the best of all.
几乎所有的金属都是良导体，银是最好的导体。
Almost tall metals are good conductors, silver being the best of all.
铜是热的良导体。
铝是热的良导体。
塑料是不良导体。
几乎所有的金属都是良导体，而银则是最好的导体。
Almost all metals are good conductors, silver being the best of all.
几乎所有的金属都是良导体，而银则是最好的导体。
Almost all metals are good conductors, and silver is the best of all.
液体由于没有自由移动的电子因而是电的不良导体。
Liquids, which contain no free electrons, are poor conductor of electricity.
金是良导体。
这层玻璃状物体是锂离子的良导体，尽管储存不了多少锂离子。
This lithium-phosphate glass is good at conducting lithium ions, though it cannot actually store many.
科学家发现差不多所有的金属都是良导体，其中最好的是银。
Scientistshave found almost all metals are good conductors, the best of which is silver.
绝大多数金属都是电的良导体，而纸张、空气、玻璃则是良好的绝缘体。
Most metals are good conductors of electricity, while paper, air and glass are good insulators.
绝大多数金属都是电的良导体，而纸张、空气、玻璃则是良好的绝缘体。
Most metals are good conductors of electricity, while paper, air and glass are good insulators.
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