抽样调查

• We sampled opinion among the workers about changes in working methods
  我们抽样调查工人对改变工作方法的看法。
• The application and popularization of sample survey on agricultural statistics
  抽样调查方法在农业统计中应用和推广
• Sampling investigation on the body shape of 3 - to 6 - year - old infants in hebei province
  6岁幼儿身体形态现状的抽样调查
• Investigation on the status of eyesight in the students of hunan province from 1991 to
  2000年三次抽样调查学生视力状况研究
• Report on fourth epidemiological survey for tuberculosi s in heilongjiang province
  黑龙江省第四次结核病流行病学抽样调查报告
• On young teachers ' working and living quality a sampling survey in universities in wuhan city
  对武汉市高校青年教师的抽样调查
• Sampling survey of vaccination in children of floating population in zhejiang province
  浙江省流动儿童免疫规划疫苗接种抽样调查
• Survey on species of migratory birds in pingfengjie in hunan province and their migratory habits
  北京市区流浪猫密度的初步抽样调查
• The report of the forth epidemiologic sampling survey for tuberculosis in guangdong province
  广东省第四次结核病流行病学抽样调查报告
• A sampling survey on the mental health state of 1 350 pupils in pudong district of shanghai
  上海浦东区1350名小学生心理卫生情况抽样调查