一手数据(Primary source)也称为原始数据,原始数据是指通过访谈、询问、问卷、测定等方式直截了当获得的,通过收集一手数据可以解决待定问题。
多源的数据可以归纳为三大类:(1)一手数据(Primary Data),包括企业或组织直接采集掌控的内部运行数据和营销数据,(2)二级数据(Secondary Data),第三者采集、整理、和提供的二手数据...
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然而,由于大部分的Linux内核测试工作历时都比较短,因此本系列测试为我们提供了长时间运转的第一手数据和结果。
However, as most Linux kernel testing efforts have only been conducted over short periods of time, this series of tests provides us first-hand data and results of longer runs.
通过LWD进行数据测量,可以避免使用昂贵的电缆测井,可以在井眼刚钻完还处在最佳状态时立刻获取第一手数据。
The measurements, delivered via LWD, also eliminate costly wireline conveyance runs and capture data immediately after drilling when the borehole is in the best condition.
通过对这些一手数据的计量回归,作者得到了影响农村剩余劳动力流动的因素,并对各因素进行了分析,尤其着重说明了对东西部影响有所不同的因素。
After regression of the data, the author analyzed the influencing factors of surplus rural labor migration with emphasis on the factors which have different influences on each city.
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