木头是不良导体。
Wood is a poor conductor of heat and electricity.
木头是热和电的不良导体。
塑料是不良导体。
Wood is a poor conductor of sound.
木头是声音的不良导体。
Liquids, which contain no free electrons, are poor conductor of electricity.
液体由于没有自由移动的电子因而是电的不良导体。
A conductor is a poor insulator because it has a low resistance to such flow.
导体可说是不良绝缘体，因为它的电阻很低。
A conductor is a poor insulator because it has a low resistance to such flow.
导体可说是不良绝缘体，因为它的电阻很低。
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