The Soviet scientist made his experiments with a bad light, on wooden tables, using an old vacuum cleaner instead of a compressor.

这位苏联科学家在木桌上，借着糟糕的灯光做实验，用的是旧吸尘器而不是压缩机。

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The research consisted of seven experiments, some split into two parts, each with a group of between 20 and 57 people aged 19 to 22 years old.

这项研究由七个实验组成，一些实验会分成两个部分，每个部分由19到22岁的20到57个人的小组来完成。

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In remarkable experiments, researchers took cells from children who were old before their time and made them healthy again.

在一系列卓有成效的实验中，研究人员从“未老先衰”的孩子身上提取出细胞，并让他们恢复了健康。

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They're not straight-laced old-fashioned; they're willing to take experiments.

他们不固守成规,他们注重实证研究

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Anyone who has visited a weekend flea market has noticed the old coin and currency collector displays filled with past experiments in national fiat money.

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Harold Brown, a 31-year-old self-taught engineer, asked if he could conduct experiments at Edison's lab.

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The agency treats genetically engineered products as though they pose some inherent, systematic, unique risks, when theoretical considerations, risk-assessment experiments and practical experience make it clear that they do not: A quarter-century-old scientific consensus holds that the molecular techniques of genetic engineering are an extension, or refinement, of less precise and predictable techniques for genetically improved products with which consumers and government regulators have long familiarity and comfort.

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