hydrometer

n scientificinstrument that measures the density of liquids 液体比重计.

hybridize, hybridise, Hyde Park, hydr(o)-, hydra, hydrangea, hydrant, hydrate, hydration, hydraulic, hydraulically, hydraulics, hydrocarbon, hydrochloric, hydroelectric, hydroelectrically, hydroelectricity, hydrofoil, hydrogen, hydrogen bomb (also H-bomb), hydrogen peroxide, hydrophobia, hydroplane, hydroponics, hydrotherapy, hyena (also hyaena), hygiene, hygienic, hygienically, hymen, hymn, hymnal, hyp-, hypo-, hype, hyper-, hyperactive, hyperactivity, hyperbola, hyperbole, hyperbolic, hyperbolical,