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| 61. | ethylene oxide substitution |
| 氧乙烯取代度 |
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| 62. | tetra substitution product |
| 四取代产物 |
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| 63. | substituent effect |
| 取代基效应 |
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| 64. | the replacement of conventional weapons By nuclear weapons |
| 用核武器取代常规武器 |
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| 65. | would be a good enough substitute for coffee. |
| 完全可以取代咖啡。 |
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| -- 来源 -- 汤姆?索亚历险记 - The Adventures of Tom Sawyer Chapter 14 (2) |
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| 66. | Carriages have taken place to cars. |
| 马车已为汽车取代。 |
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| 67. | Then the telegram was replaced by the telex machine, which was followed by the facsimile. |
| 后来电报被电传机取代，后者又被传真机所取代。 |
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| 68. | geminal substituted hydrocarbons |
| 双取代的烃 |
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| 69. | Human brain was replaced. |
| 人脑被取代了。 |
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| 70. | organo-metal substitution |
| 有机金属取代作用 |
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