They have many interesting physical properties, such as symmetric band structure, strong temperature dependences of energy gaps, absence of a heavy hole band, and low Auger recombination rates, etc.
它们具有很多独特的物理性质：对称的能带结构、强烈依赖于温度的带隙、一个重空穴带的缺失、低的俄歇复合率等。
In-band (often called symmetric) virtualization sits between the host and the storage device allowing caching.
可控制的(常常称作对称的)虚拟化位于宿主与存储设备之间，并允许缓存。
This matrix is symmetric and banded, the band being equal to four.
这个矩阵是对称的且是带状的，带宽等于四。
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