To conduct the study, Lawson and Lenz used data from two 2006 surveys of American voters.

为了进行这项研究，罗森和楞兹使用了2006年两次美国民众调查数据。

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Lenz gives the reader the background on the Rails framework, including history and the principles embodied by Rails.

Lenz给读者介绍了Rails框架的背景，包括历史及Rails所包含的基本原理。

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In his work, Lenz has grafted hydrogenase directly onto photosystem I, a protein unit needed for photosynthesis.

伦兹把氢化酶直接嫁接到光反应阶段lu所需的一种蛋白质单元上。

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CNN's Cristy Lenz, Kara Devli, Dana Ford and Katherine Wojtecki contributed to this report.

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