| 1. | Presumably reactive surfaces became blocked .
反应表面可能被堵塞了。
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| 2. | These atoms are highly reactive .
这些原子有较高的反应活性。
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| 3. | Ammonia is a very reactive chemical .
氨是很活泼的化合物。
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| 4. | It is argued that the pyramidal radical would be more reactive .
可以认为锥形的自由基比较活泼。
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| 5. | Severe steric effects at the reactive carbon would impede the substitution .
大的立体效应阻止在碳上的取代。
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| 6. | More reactive are the heavier isotopes of hydrogen, deuterium and tritium .
更为活跃的是氢的较重同位素，氘和氚。
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| 7. | Highly reactive and delocalized electrons would react with photons .
高度活性和非定域的电子应该能够与光子起反应。
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| 8. | Fiber reactive dyes are from true chemical bounds between dyestuff and fiber .
纤维活性染料来源于染料与纤维之间形成的真正化学键。
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| 9. | The first of the reactive intermediates to be considered is known as a "carbocation" .
要研究的第一种活性中间体叫做“正碳离子。”
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| 10. | The first of the reactive intermediates to be considered is known as a "carboniumion" .
要研究的第一种活性中间体叫做“正碳离子”。
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