通常情况下，回归估计的效率高于系统抽样。
The efficiency of regression estimate was usually higher than systematic sampling.
采用系统抽样方法对佛坪自然保护区大熊猫的夏季栖居地进行了研究。
A method of systematic sampling has been adopted for Giant panda ( Ailuropoda melanoleuca) in Foping Nature Reserve.
本文采用系统抽样的方法，调查了某医院门诊病人费用情况及有关因素。
The outpatients expenses in a teaching hospital in Shiyan were investigated by means of systematic sampling.
PPS系统抽样设计是国际上比较流行的设计，它在实践中有着广泛的应用。
Systematic PPS sampling design is a kind of popular design in the world that is widely applied in practice.
方法采用系统抽样方法，对社区4 107位居民实施问卷调查和相关指标的检测。
METHODS The systematic sampling methods were used. 4 107 residents were investigated by questionnaires and some blood indexes were examined.
方法应用系统抽样法进行现场查螺，现场和实验室模拟水淹实验观察钉螺存活情况。
Methods Systematic sampling method was used in field Oncomelania investigation, and laboratory and field simulating drowning methods were also performed to observe survival of Oncomelania.
医院整体情况数据通过管理部门和药库获得，处方行为和患者治疗情况通过系统抽样方法采集。
The health facility information was gained from hospital administration section. The prescription and treatment data were collected from the discharged patients' medical history.
群样本检验中，系统抽样群样本检验和分层随机抽样群样本检验的效果优于简单随机抽样群样本检验。
During the course of cluster sample verification, systematic sampling and stratified sampling "s accuracy are prior to simple random sampling" s.
方法全国系统抽样调查省市县各级疾病预防控制机构的各类设备配置种类和数量，计算设备资产，和标准比较得到缺口。
Method National system sampling survey of kinds and number of the equipment in institution of disease prevention and controlment, compute equipment assets, and gaps compare with standard.
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，用系统抽样结合环境抽样法开展螺情调查。
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，用系统抽样结合环境抽样法开展螺情调查。
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.
应用推荐