rest mass

名词 rest mass:

1. (physics) the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body

1. A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass.
   引力微子一种假想粒子，被假定为引力相互作用的量子，并被推测为具有无限长寿命、零电荷和零静止质量