英语词汇quota sample怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	quota sample
释义	quota sample 简明释义配额抽样：一种抽样方法，根据研究对象的某些特征将总体分为若干类别，然后从每个类别中按一定比例抽取样本。专业释义 1 数学定额样本配额样本 2 计算机科学技术定额样本双语例句 1 Methods: the sample, after the nitric acid and the perchloric acid digestion was induced in the flame atom absorption spectrophotometer with standard series comparison quota. 方法：样品用硝酸和高氯酸消化后，导入火焰原子吸收分光光度计中，与标准系列比较定量。
随便看	discoglossid discoglossidae discoglossidae discogram discographer discographer discographic discographical discographically discography discography discohere discohesive discohexactine discohexaster discoiblastula discoid discoidal discoidal area discoidal areolet discoidal armature discoidal cell discoidal cleavage discoidal crossvein discoidal division

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。