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| 51. | aromatic substitutio |
| 芳族取代 |
|
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| | |
| 52. | partially substituted cellulose acetate fibre |
| 低取代醋酸纤维 |
|
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| | |
| 53. | trisubstitution product |
| 三取代产物 |
|
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| | |
| 54. | alien substitution line |
| 外来取代品系 |
|
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| | |
| 55. | angular substituents |
| 角取代基 |
|
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| | |
| 56. | allylic substitution |
| 烯丙取代 |
|
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| | |
| 57. | para-orienting group |
| 对位取代基 |
|
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| | |
| 58. | olefin(e)-substituted aromatic |
| 烯烃取代芳香烃 |
|
|
| | |
| 59. | nucleophilic substitution |
| 亲核取代 |
|
|
| | |
| 60. | side substitution |
| 侧链取代 |
|
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| | |