英语词汇primary standard substance的读音、用法、中文释义、短语词组及例句-英汉双解词典

单词	primary standard substance
释义	primary standard substance 英?[?praim?ri ?st?nd?d ?s?bst?ns] 美?[?pra??m?ri ?st?nd?d ?s?bst?ns] 释义基准物（质）
随便看	sunsick sunside sunsidiary company sun sign Sun Simiao sun si-miao sun-simulating sun simulator sunskirter Sunskiy Rayon Sunskrit sun-smart sun's meridian altitude sun's motion sun-soaked sunsoft Sun Solaris sunsolve sunsolves sunsource sunspace sunspaces sun species sunspecs sunspectrum

英汉双解词典包含4367426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。