In addition to copper, there are many other metals which are good conductors.除了铜之外, 还有很多其他金属都是良导体.He purposed to become one of the world's leading conductors.他意欲成为世界主要领导者之一.Of scuds metals conduct heat most quickly....

Semiconductors containing such impurities are called p - type semiconductors.含有这类杂质的半导体叫做P型半导体.It is not possible to name any particular conductivity at which metals end and semiconductors begin.不可能说出在哪个特定的导电系数处是金属和半导体的分...