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Before about 1960, virtually all accounts of evolution assumed most adaptation to be a product of selection at the level of populations; recent studies of evolution, however, have found no basis for this pervasive view of selection.
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在1960年以前,事实上几乎所有对于进化的记述都假设大部分适应性改变都是在种群层面的选择的结果;但是最近对于进化论的研究,全没有发现这种普遍性的关于选择的观点有任何基础。 |
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Before adjourning, councillors must stop procrastinating and revisit this controversial issue.
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在休会之前,参议员必须停止拖延,重新讨论这个引起争议的问题。 |
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Before admitting hydrogen into a system, purge it with nitrogen to ensure that a flammable mixture cannot be developed.
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在允许氢气进入系统前,用氮气吹扫以保证系统不会产生可燃性混合物。 |
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Before an audit or validation of a function point count can take place a procedure should be in place to evaluate a the count(s).
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在审计或功能点估算验证进行之前,都应该有一套程序支持。 |
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Before and after new China was established, the policy on China by U.S.A. is in the state of playing pendulum.
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摘要新中国成立前后,美国对华政策处于摇摆不定的状态。 |
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Before and after reading out the signals, you can extract noise existing within the pixels themselves, and then cancel it out by subtracting it at a later stage.
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在读取信号之前和之后,你可以提取存在于象素中的噪音信号,然后在后续的过程中通过减去这些噪音信号来达到消除它们的目的。 |
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Before and after the September 18th Incident, relying on its geographical advantage gained through invading and occupying Korea, Japan instigated Korean Wave People to carry out wild smuggling activities in the Northeast of China.
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九一八事变前后,日本利用吞并朝鲜后的地理优势,策动朝鲜浪人大肆对中国东北地区进行猖獗的走私活动,这是20世纪30年代日本对华走私狂潮的前奏。 |
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Before and during the endovascular operation, all the cases were diagnosed as follows: arteriovenous fistula in 23 cases, cirsoid angioma 32 and cavernous hemangioma 28.
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本组病例术前或术中分别诊断为:动静脉瘻23例,蔓状血管瘤32例,海绵状血管瘤28例。 |
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Before any capitalist mode of production is firmly established, there has to be a stage of primitive accumulation of capital.This term carries a dual meaning: on one side there is the concentration of wealth allowing the initial accumulation of capital fo
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在资本主义生产方式确立以前,会出现「资本原始积累」的过程,资本原始积累概念具有两重意义:一是财富的集中,提供工业化最初资本积累的来源,二是「自由」劳动力的形成,为雇佣劳动生产创造基本的条件。 |
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Before any decision is made by the Chairman of the Arbitration Commission, the challenged arbitrator shall continue to perform the duties of an arbitrator.
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在仲裁委员会主任就仲裁员是否回避作出决定前,被请求回避的仲裁员应当继续履行职责。 |
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Before any monel part is assembled into a hydrofluoric acid valve it is acid tested to assure that it is monel.
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在将任何蒙乃尔部件组装进氢氟酸阀门之前,都经过酸性检测,以确保确实是蒙乃尔材料。 |