| 单词 | rat growth unit |
| 释义 | rat growth unitrat growth unitAn obsolete, semi-quantitative bioassay unit corresponding to the amount of vitamin A necessary to promote a weight gain of 3 grams in vitamin A-depleted rats. |
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。