1)electron theory of metals,金属电子论2)electron theo ry on metal,金属电子理论3)classical electron theory of metal,金属经典电子论4)classical free-electron theory in metals,经典金属自由电子论5)Electron theory of transition-metal and rare-earth ions,过渡及稀土金属离子的电子理论6)metal tube,金属管金属壳电子管
用法和例句
Drude classical electron theory of metal (1900) and London equation (1935) of superconductor;