In practice, considering the error caused by data sampling, author has made use of program judgement method which belongs to digital filter method to make error signal be within allowable scope.

在实际工作时，考虑数据采集时所引起的误差，利用数字滤波中的程序判断法以控制误差信号在允许的范围之内。

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In Empirical Study, the scope of sampling including the "Chang-zhu-tan District" of horizontal strategic alliance enterprises already established or soon to be established.

实证所采样的范围是长株潭区域即将组建或已组建水平型战略联盟的企业。

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Taking random sampling method, analyzes the scope, organization, novelty and friendness of the academic information resources and points out the existing problems.

采取抽样方法，抽取部分科研机构所建站点，对其内容和组织方式等进行分析。

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"Proper sampling from the mobile laboratory is urgently needed to determine the scope and magnitude of the crisis and to assist in developing a rigorous response, " OCHA said in a statement.

BBC: UN investigates Nigeria lead poisoning deaths