conductionn.传导；输送conduction contact导电触头, 导电接头conduction aphasia传导型失语症,传导失语conduction pathway传导通道conduction portion(颞骨)传导部分conduction textile导电纺织面料conduction by hole[电] 电洞传导conduction process导电过程conduction of heat热传导conduction carrier传导载波conduction current传导电流

1. The highest-energy band containing electrons is called the valence band, and the next higher one is the conduction band.
   填有电子而能量最高的能带称为价带，相邻的更高能带称为导带。
2. Thus, optical-wavelength light can excite an electron at an impurity atom from one discrete state to another without knocking it all the way to the conduction band.
   因此，一般的光波可以将杂质原子里的电子从一个离散的能态激发到另一个，而不会把它打到更高的导带。