比重计,重力计
Gravimeter \Gra*vim"e*ter\, n. [L. gravis heavy + -meter: cf. F. gravim[`e]tre.] (Physics) An instrument for ascertaining the specific gravity of bodies.
gravimeter
n 1: a measuring instrument for determining the specific gravity
of a liquid or solid [syn: {hydrometer}]
2: a measuring instrument for measuring variations in the
gravitational field of the earth [syn: {gravity meter}]