英语词汇primary frequency standard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 frequency standard
释义	primary frequency standard 简明释义基本频率标准网络释义短语 1 primary frequency standard 原始频率基准 ; 一级频率标准 ; 物基本频率标准 ; 基准频标 2 5071A Primary Frequency Standard 铯原子钟 3 frequency primary standard 频率基准
随便看	lumber fire lumber freeboard lumber freeboard mark lumber freeboard mark of summer lumber freshwater free board lumber freshwater loadline lumber fresh water load line lumberg lumber gauge lumberg kiln lumber grading rules lumber harbor lumber hook lumbering lumberingly lumbering machinery lumbering operation lumbering lumber in one's walk lumber inspection bureau lumber iron lumber jack lumberjack lumberjacket lumberjacket

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。