Depending upon certain conditions there may ornot may be f ree elect rons in semi - conductors.
Depending upon certain conditions there may ornot may be f ree elect rons in semi - conductors.
半导体是否存在着自由电子,这取决于某些条件。
Depending upon certain conditions there may ornot may be f ree elect rons in semi - conductors.
半导体是否存在着自由电子,这取决于某些条件。