the ratio of the density of any substance to the density of a substance taken as a standard, e.g. pure water or hydrogen, when both densities are obtained by weighing in air; relative density
| 单词 | specific gravity |
| 释义 | specific gravitynounthe ratio of the density of any substance to the density of a substance taken as a standard, e.g. pure water or hydrogen, when both densities are obtained by weighing in air; relative density |
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