大家都搜：
袋式取样
1、multistage sampling───多级采样; 多级抽样; 多级抽样法; 多级取样；[统计]多级抽样
2、quota sampling───配额取样；[经]定额抽样；定额抽样（法）
3、impertinence sampling───不恰当抽样
4、sampling rate───采样率，抽样率；[自]采样率；[数]抽样率
5、convenience sampling───便利抽样；方便抽样；任意抽样；方便抽样，任意抽样
6、cluster sampling───分群[组]抽象法；分组取样；类集抽样；巢式抽样法
7、sampling distribution───采样分布；[数]抽样分布；取样分布
8、sampling error───[数]抽样误差；取样误差，抽样误差，采样误差
9、unstratified sampling───非分层取样
1、Australian wool is imposed by bag sampling.───澳毛实行的是包包取样。
2、A system for measuring exhaust particulates from an automotive diesel engine under transient operating conditions was developed, which includes a conventional dynamometer and a dilution sampling bag.───研制了一种在发动机台架上进行柴油机变工况下排气微粒测量的测试XiTong。该XiTong主要由普通测功机和微粒稀释取样袋等组成。
3、Methods: Using stratified sampling method to determine the survey places, The schistosomiasis in people and livestock were surveyed by the methods of nylon bag incubation and top - tube incubation.───方法：用分层随机抽样法确定调查点。 用尼龙袋集卵孵化法、顶管孵化法分别对人畜进行查病，用XiTong抽样结合环境抽样法开展螺情调查。