英语词汇“secondary time standard”的翻译、意思、用法、释义-英汉汉英双解词典

单词	secondary time standard
释义	secondary time standard 二级时间标准
随便看	rasching rings raschings method rasching tubes Raschini Raschio Raschioni raschit raschite Raschitelli raschka Raschka raschke Raschke raschko raschkow plexus Raschkow's plexus rasch model Rasch model Raschovszki rasch sign Rasch's sign Rascid Rascio Rascioni rascist