The bent bond states mainly appear near the top of valence band.

弯键态主要出现在价带顶附近。

When an electron leaps into the conduction band, it leaves behind a hole in the valence band.

当一个电子跃迁到传导带，它会在价带留下一个“凹陷”。

The experimental result, show an increase of both conduction and valence band tail states.

实验结果表明：光照以后，导带尾态和价带尾态都增加了。

Most optical oscillator strengths for the transitions between valence band and conduction band are nearly equal to zero.

价带顶和导带底附近的带间跃迁振子强度大部分都近乎为零；

This paper gives a simplified calculation of the valence band structure for a diamond-type crystal in nearest neighbor approximation.

用最近邻近似法对金刚石型晶体的价带给出了一种简化的计算法。