conduction band的用法和樣例：
例句
- The highest-energy band containing electrons is called the valence band, and the next higher one is the conduction band.
填有電子而能量最高的能帶稱為價帶，相鄰的更高能帶稱為導帶。 - 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，一般的光波可以將雜質原子里的電子從一個離散的能態激發到另一個，而不會把它打到更高的導帶。
