SQS USES message sampling based on weighted random distribution, and it returns messages only from the sampled subset of servers when you query for messages.

SQS使用基于加权随机分布的消息取样，在查询消息时，它只从取样的一部分服务器返回消息。

youdao

Although random sampling used for many surveys fails to cover large segments of the population, the procedure nonetheless offers insight into voting and consumption patterns.

虽然许多调查所用的随机取样不能覆盖大部分人口，但是这一过程使人们能更深刻地理解选举和消费的模式。

youdao

In this project the group categorized a random sampling of blog posts and weighed words for their emotional charge.

在这个研究项目中，研究团队会对随机抽样的博客文章进行分类，并对包含情绪词汇进行衡量。

youdao

The government said it had forbidden the use of the rice, "adopted control measures" and will continue surveillance and random sampling of rice in the city.

WSJ: Cadmium-Tainted Rice Found in Guangzhou