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| 21. | "Early antibiotics were natural microbial products, But chemists have modified the structures of many to produce semisynthetic and even wholly synthetic ones." |
| 早期的抗生素是由细菌自然生成的产物,化学家改变许多结构产生出半合成或完全合成的抗生素。 |
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| 22. | antibiotic therapy |
| 抗生素疗法 |
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| 23. | nucleoside antibiotic |
| 核苷抗生素 |
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| 24. | To examine and determine |
| 鉴定 |
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| 25. | chemistry of antibiotics |
| 抗生素化学 |
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| 26. | Six kind of authentication reports are designed according to the judicial requirement, which are respectively related to the authentication of damnify, pathology, toxicology, psychiatry, clinic, and material evidence. |
| 分别是损伤鉴定报告书、病理学鉴定报告书、毒理学鉴定报告书、精神病学鉴定报告书、临床学鉴定报告书和物证鉴定报告书。 |
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| 27. | Experiments in Antibiotic |
| 抗生素实验 |
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| 28. | spectrographical identification |
| 光谱鉴定;摄谱鉴定 |
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| 29. | chloramphenicol n. |
| 一种抗生素 |
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| 30. | semisynthetic penicillin and ergot system fungus |
| 半合成青霉素及麦角系列菌种 |
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