Earth mass

短语

词形变化

Earth masses 复数 Earth masses

释义与例句

n.
  1. 1.

    A unit of mass equal to that of the Earth, used to express the mass of planets and similar astronomical bodies. 1 M_🜨 = 6 × 10²⁴ kg.

    天文

    The mass of Jupiter is 318 M_🜨; its radius is 11 R_🜨.