例句與造句

1. where \ displaystyle m _ e, v _ e, c are the electron rest mass, velocity of the electron, and speed of light respectively.
2. The electron relative atomic mass is an adjusted parameter in the CODATA set of fundamental physical constants, while the electron rest mass in kilograms is calculated from the values of the Planck constant, the fine structure constant and the Rydberg constant.
3. For example, a 45 GeV electron accelerated by the Large Electron Positron Collider ( LEP ) at Cern in 1989 would have had a Lorentz factor ? of about 88, 000 ( 45 GeV divided by the electron rest mass of 511 keV ).
4. In a solid, the scaling of E _ \ lambda and the wavefunction size are orders of magnitude different from the hydrogen problem because the relative permittivity \ varepsilon _ r is roughly ten and the reduced mass in a solid is much smaller than the electron rest mass m _ e, i . e ., \ mu \ ll m _ e.
5. It's difficult to find electron rest mass in a sentence. 用electron rest mass造句挺難的