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| <blockquote> | | <blockquote> |
− | Somewhere in this cycle work must be done, which means that free energy must be expended. If the parts assemble themselves on a template spontaneously, work has to be done to take the replica off; or, if the replica comes off the template of its own accord, work must be done to put the parts on in the first place. | + | ''Somewhere in this cycle work must be done, which means that free energy must be expended. If the parts assemble themselves on a template spontaneously, work has to be done to take the replica off; or, if the replica comes off the template of its own accord, work must be done to put the parts on in the first place.'' |
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− | 在这个循环的某个地方,必须做功,这意味着自由能必须被消耗。如果零件自发地在模板上组装起来,就必须做功才能把复制品取下来;或者,如果复制品自动从模板上脱落,首先一定要做功把这些零件装上。 | + | ''在这个循环的某个地方,必须做功,这意味着自由能必须被消耗。如果零件自发地在模板上组装起来,就必须做功才能把复制品取下来;或者,如果复制品自动从模板上脱落,首先一定要做功把这些零件装上。'' |
| </blockquote> | | </blockquote> |
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| <blockquote> | | <blockquote> |
− | the generally accepted prebiotic synthesis of ribose, the formose reaction, yields numerous sugars without any selectivity. | + | ''the generally accepted prebiotic synthesis of ribose, the formose reaction, yields numerous sugars without any selectivity.'' |
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− | 普遍接受的生物前核糖的合成,即甲醛聚糖反应,产生了许多没有任何选择性的糖类。<ref>{{cite journal |last1=Larralde |first1=Rosa |last2=Robertson |first2=Michael P. |last3=Miller |first3=Stanley L. |date=29 August 1995 |title=Rates of Decomposition of Ribose and Other Sugars: Implications for Chemical Evolution |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=92 |issue=18 |pages=8158–8160 |bibcode=1995PNAS...92.8158L |doi=10.1073/pnas.92.18.8158 |pmc=41115 |pmid=7667262}}</ref> | + | ''普遍接受的生物前核糖的合成,即甲醛聚糖反应,产生了许多没有任何选择性的糖类。<ref>{{cite journal |last1=Larralde |first1=Rosa |last2=Robertson |first2=Michael P. |last3=Miller |first3=Stanley L. |date=29 August 1995 |title=Rates of Decomposition of Ribose and Other Sugars: Implications for Chemical Evolution |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=92 |issue=18 |pages=8158–8160 |bibcode=1995PNAS...92.8158L |doi=10.1073/pnas.92.18.8158 |pmc=41115 |pmid=7667262}}</ref>'' |
| </blockquote> | | </blockquote> |
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| 他们得出结论,他们的结果表明, | | 他们得出结论,他们的结果表明, |
| <blockquote> | | <blockquote> |
− | the backbone of the first genetic material could not have contained ribose or other sugars because of their instability. | + | ''the backbone of the first genetic material could not have contained ribose or other sugars because of their instability.'' |
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− | 第一种遗传物质的主干不可能含有核糖或其他糖类,因为它们不稳定。 | + | ''第一种遗传物质的主干不可能含有核糖或其他糖类,因为它们不稳定。'' |
| </blockquote> | | </blockquote> |
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