英语词汇primary sampling system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	primary sampling system
释义	primary sampling system 简明释义一回路取样系统网络释义 1 ?一回路取样系统 ... 瞬时取样系统 promptsamplesystem 一回路取样系统 primary sampling system 核取样系统 REN ... 双语例句 1 The present balanced two-layer sample rotation system is applicable only to the monthly survey with two-stage sample designs and with small primary sampling units. 目前的平衡两层次样本轮换模式只适用于一级单元规模较小时的两阶段抽样月度调查。
随便看	frame grammar frame grid frame grider frame grid tube frame ground frame ground (fg) frame ground frame-grounding circuit frame grounding circuit frame handler frame handling function frame harp frame head frame header frame heater frame heel piece frame height frame hoist frame hoisting device frame hold frame hold adjustment frame holder frame hole frame hopping frame house

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。