| 单词 | hydrometer |
| 释义 | hydrometer —hydrometric /huy'dreuh me"trik/, hydrometrical, adj. —hydrometry, n. /huy drom"i teuhr/, n. an instrument for determining the specific gravity of a liquid, commonly consisting of a graduated tube weighted to float upright in the liquid whose specific gravity is being measured. [1665-75; HYDRO-1 + METER] |
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