* Design a representative sample 设计建立具有代表性的样本 * Data collection 采集样本数据 * Data projection 推算样本数据 ..
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这二者的改变最终都增加了采集样本数据所需的总时间。
Both of these changes result in an increase in the total time necessary to collect the sample of data.
从建立全国立木生物量模型的实际需求出发，对建模样本数据的采集方法进行专题研究。
The sample collection approach for modeling of single-tree biomass equations was studied in this paper.
为了探查我国电子政务公民采纳意向的影响因素，本研究构建了电子政务服务公民采纳模型，并通过问卷方式采集了630个有效样本数据，运用结构方程建模方法对模型进行了检验。
A model for citizen adoption of e-government servicesin China is construced. The research model is empirically validated based on 630 samples by using structural equation modeling technique.
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