Hydrometer

[haɪ'drɒmɪtə] or [haɪ'drɑmɪtɚ]

解釋/意思:

(noun.) a measuring instrument for determining the specific gravity of a liquid or solid.

杰弗里校對--From WordNet

解釋/意思:

(n.) An instrument for determining the specific gravities of liquids, and thence the strength spirituous liquors, saline solutions, etc.

(n.) An instrument, variously constructed, used for measuring the velocity or discharge of water, as in rivers, from reservoirs, etc., and called by various specific names according to its construction or use, as tachometer, rheometer, hydrometer, pendulum, etc.; a current gauge.

卡洛琳手打

解釋/意思:

n. an instrument for measuring the density or specific gravity of solids and liquids by flotation consisting of a weighted glass bulb or hollow metal cylinder with a long stem: a current-gauge.—adjs. Hydromet′ric -al.—n. Hydrom′etry.

手打:托马斯