His comprehensive surveys have provided statements of how data are collected.

他的综合调查提供了关于如何收集数据的陈述。

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His comprehensive surveys have provided the statements of how data are collected.

他全面的调查给出了关于如何收集数据的陈述。

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These data are collected using two different sets of questionnaires.

两套数据采用两份不同的问卷收集得到。

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No data are collected to show even whether the guns some use are legally registered or not.

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Every year, some 20 TB of data are collected, stored, and analyzed.

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The best hope for a positive outcome is to promote clear principles that govern how these sensitive data are collected and put to work.

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