然而要在电网中用超导体完全取代铜导线,目前仍然有一些技术障碍,最关键的问题是费用。
However, there are still some technological hurdles to overcome before superconductors replace the copper wires in our power grids. The main issue is cost.
相比同样粗细的铜导线,他们的输电能力高达150倍,但因为技术困难,超导体输电的商业应用发展缓慢。
They conduct 150 times the electricity of similarly sized copper wires. However, because of technological difficulties, the commercial development of superconductor power-cable systems has been slow.
不同于低温超导体,在高温超导线圈中,一定体积内的热积累是造成失超的较主要原因。
Unlike the low temperature superconductors, heat accumulation in a specific volume is more likely the main cause of quenches for the high temperature superconductive (HTS) coils.
它的广泛报导集中在印刷电路、集成电路、连接材料、半导体、导线、粘结、钎焊、焊锡和焊接。
Its comprehensive coverage focuses on printed circuits, integrated circuits, contact materials, semiconductors, wire, bonding, brazing, soldering, and welding.
一根导线一端接入液态导体,另一端接到电源上,从而可加热研磨盘到需要的温度。
One end of the lead is connected into the liquid conductor and the other end is connected to a power supply, therefore the grinding disk can be heated to a required temperature.
我们的设备广泛用于生产电工方面的线圈,导线和导体。
Our equipment is widely used for the manufacture of electrical coils, electrical cable and electrical conductors.
这些净电荷并不分布在均匀导线或负载的内部,只分布在导体或负载的表面、两种导体的交界面处或不均匀导体的内部。
The net charges are not distributed inside the uniform conducting wire or load and they are only distributed on the surface of con- ductor or load, on the interface of…
这些净电荷并不分布在均匀导线或负载的内部,只分布在导体或负载的表面、两种导体的交界面处或不均匀导体的内部。
The net charges are not distributed inside the uniform conducting wire or load and they are only distributed on the surface of con- ductor or load, on the interface of…
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