我们认为铜和银是良导体。
像铜和银那样的材料称之为良导体。
Such materials as copper and silver are called good conductors.
铝和大多数金属都是良导体。
所有这些金属都不是良导体。
除了铜，还有很多其它金属都是良导体。
银、铜和铝是良导体。
铜是传热的良导体。
纳米流体是比其组成元素各部分总和更佳的良导体。
Nanofluids are better conductors than the sum of their parts.
各种液体，由于不含有自由电子，是热的不良导体。
Liquids, which contains no free electrons, are poor conductors of heat.
金属是具有较高的强度、导热性和气密性的良导体。
Metals are good electrical conductors with high strength and usually have no porosities for gas permeability.
金属是具有较高的强度、导热性和气密性的良导体。
Metals are good electrical conductors with high strength and usually have not porosities for gas permeability.
一切金属都是良导体，因为金属里有大量的自由电子。
All metals are good conductors because there are a great number of free electrons in them.
一般说来，金属都是良导体，其中以银为最好，铜次之。
In general, all the metals are good conductors, with silver the best and copper the second.
铜矿与围岩存在电性差，具备寻找良导体的物理前提条件。
There occur the electrical difference in the copper ore and its wall rock, which possesses physical terms prior to look for the good conductor.
不幸的是，因为这些阴极材料都不是良导体，所以充放电需要很长时间。
Unfortunately, because these materials are not good conductors of electric charge, it takes a long time to get the charge in or out of a battery.
石墨是热的良导体，有较高的导热系数，被认为是金属材料的理想替代体。
Graphite is a good conductor of heat, with high thermal conductivity, is considered an ideal alternative to metal.
他目前面临的困难是，要找到一种物质，同时是很好的电导体又是热的不良导体。
The challenge lies in finding a substance that conducts electricity well and heat badly.
从磁热测量的结果，得到了一些单一铁磁样品和磁-良导体复合样品的磁致热效应实验规律。
Some experimental regularities of magneto-calorific effect obtained by measuring several ferromagnetic samples of magnetic core with conductive have been obtained.
是电和热的不良导体；混合物中含有某些金属氧化物时，玻璃会呈现出不同的颜色。大多数种类的玻璃容易破碎。
A poor conductor of heat and electricity, glass takes on colours when certain metal oxides are included in the mix. Most glass Breaks easily.
但是纳管还具有其他的品质，吊起了工程师们的胃口：它们是电与热的优良导体，可以用作电线、半导体或超导体。
But nanotubes have other qualities that are whetting the appetites of engineers: they're excellent conductors of electricity and heat, and they can be used as wires, semiconductors or superconductors.
根据良导体中的电磁波基本方程，导出了针对金属薄板涡流的热功率公式，讨论了影响其热功率的因素，对电磁加热的实际应用有一定的意义。
According to the electromagnetic wavetransmitting equation in good conductor, get the eddy currents 'heating power in sheet metal, then some factors that affect heating power are discussed.
根据良导体中的电磁波基本方程，导出了针对金属薄板涡流的热功率公式，讨论了影响其热功率的因素，对电磁加热的实际应用有一定的意义。
According to the electromagnetic wavetransmitting equation in good conductor, get the eddy currents 'heating power in sheet metal, then some factors that affect heating power are discussed.
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