在一系列不同的极限状态函数条件下，对随机抽样法和拉丁超立方抽样法以及是否使用方差减缩技术进行了比较研究。
Comparative study on random sampling and Latin hypercube sampling with and without variance reduction techniques is carried out to a number of different limit state functions.
方法采用整群随机抽样方法，对武汉某职业技术学校在校学生进行了艾滋病知识、态度、行为的问卷调查。
Methods 700 college students were selected from Wuhan Maritime Professional School by random sampling, a questionnaire survey about AIDS knowledge, attitude and behavior was conducted.
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