?中央位置系统抽样
... centrally located systematic sampling 中央位置系统抽样 centrally located systematic sample 中点定位系统样本 centrally located in Liechtenstein 地点和位置 ...
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。