sample survey method

基本解释

The application of sample survey method in history research is analyzed.
方法：对项目点北碚区进行抽样调查。
The sample survey method of trade credits was adjusted in 2009, and the outstanding of trade credits based on the new method at end-2009 was 161.7 billion USD.
2009年贸易信贷抽样调查方法进行了调整，按新方法统计的2009年末贸易信贷余额为1617亿美元。
www.safe.gov.cn
By using the method of sample survey, this paper investigated the edit situation of popup news in the three main instant messengers QQ, POPO and UC, in order to find out their character.
本文通过抽样调查的方法，对当前国内三大网络即时通讯工具（腾讯QQ、网易POPO、新浪UC）弹出式新闻的编辑状况进行比较分析，以揭示其各自的特色。