proportional sampling的例句大全

High proportional sampling audit to budget unit price;

对预算单价的套用进行高比例抽样审计；

Methods With proportional stratified sampling and cluster sampling method, 3555 subjects were selected including officials, company staff, high school students, community population and floating population.

方法采用多阶段按比例随机抽样和整群抽样相结合的方法，抽取公务员、公司职员、高中生、社区居民、流动人口共计3555人，用国际体力活动量表长卷进行调查。

Analyses show that the optimal strategy is actually a feedback control by giving predicted miss as error signal. It is also a modified proportional navigation guidance law. Its ideal motion at each sampling instant is approximately the well-known constant bearing course.

分析表明，最优策略实质上是以零控脱靶作为误差信号的反馈控制，在每一采样时刻近似地以平行接近法作为理想运动状态，是一种修正的比例导引方法。

The square of coloring development length of the tube was directly proportional to the product of the nitrogen dioxide concentration and sampling time.

根据时间和显色长度可求出环境中二氧化氮的浓度。

methods a two-stage cluster sampling with probability proportional to size ( pps) was conducted.

方法采用与规模大小成比例（PPS）的两阶段分层抽样法选择了583名城镇居民和429名农村居民，由调查员对调查对象进行一对一的问卷调查。