... mail sample : 通讯样本；邮递样本 mail sampling : 通讯抽样；邮递抽样 mail statistics : 邮递统计；邮递统计资料 ...
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mail questionnaire sampling 邮递问卷抽样
·2,447,543篇论文数据，部分数据来源于NoteExpress
Knowledge Networks used traditional telephone and mail sampling methods to randomly recruit respondents.
MSN: Poll reveals baby boomers' retirement fears
MessageLabs, the email-filtering company that Symantec acquired in 2008, posted a set of word maps today measuring the frequency of terms in spam emails from a random one-week sampling of junk mail pulled from the most prolific spam-spewing botnets.
FORBES: The Most Common Words In Spam Email
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