例文
- もっと例文: 1 2 3 4
- :: The OP is referrring to the classical electron radius.
- 2.8179 ?10 & minus; 15 m is the classical electron radius.
- Where a _ 0 is the Bohr radius and r _ 0 is the classical electron radius.
- where is the atomic number, the length of the wave vector, and the classical electron radius.
- :: : : : Classical electron radius is a useful characteristic length for the extent of the electric field around an electron.