低原子序物质
low-atomic-number material
Material
low-atomic-number
平均大气原子序数
average atmospheric atom number
原子序数
atomic number
atomic nucleus
Atomic ordinal number
Atom number
atomic charge
at no
ordinal number of element
Number
charge
低K材料
low-K
low-K material
Low k Dielectric Material
Low-k Insulators