单词 | Fahrenheit's hydrometer |
释义 | Fahrenheit's hydrometer [`far·ǝn´hīts hī`dräm·ǝd·ǝr] ENGINEERING A type of hydrometer which carries a pan at its upper end in which weights are placed; the relative density of a liquid is measured by determining the weights necessary to sink the instrument to a fixed mark, first in water and then in the liquid being studied. |
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