| 单词 |
vitamin d unit (international) |
| 释义 |
vitamin D unit (international) vi·ta·min D u·nit (in·ter·na·tion·al) (vītă-min yūnit intĕr-nashŏ-năl) Antirachitic activity contained in 0.025 mcg of a preparation of crystalline vitamin D3. |
| 随便看 |
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