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| 31. | substituting effect |
| 取代效应 |
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| 32. | alkyl substitution |
| 烷基取代 |
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| 33. | edge substitution |
| 边缘取代 |
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| 34. | ion substitution |
| 离子取代 |
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| 35. | take the place of; replace |
| 代替;取代 |
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| 36. | mercury replacement |
| 汞取代 |
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| 37. | take one's place; take one's position |
| 取代..人 |
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| 38. | triple substitution |
| 三元取代 |
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| 39. | anomalous substitution |
| 反常取代 |
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| 40. | direct substitution |
| 直接取代 |
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