a grade of commercial chemicals characterized by a high standard of purity and suitable for laboratory use; frequently attributive.
| 单词 | θ71528 |
| 释义 | the world > matter > chemistry > chemical substances > [adjective] > of or relating to chemicals > others (1) reagent grade1905 a grade of commercial chemicals characterized by a high standard of purity and suitable for laboratory use; frequently attributive. |
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