英语词汇“brown-ring test”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	brown-ring test
释义	brown-ring test brown-ring test [′brau̇n‚riŋ ‚test] (analytical chemistry) A common qualitative test for the nitrate ion; a brown ring forms at the juncture of a dilute ferrous sulfate solution layered on top of concentrated sulfuric acid if the upper layer contains nitrate ion.
随便看	cross polymerization cross post cross-post cross-posted cross-posting crossposting cross-postings cross-posts cross potent cross power spectral density cross pregnancy cross press cross prodcut cross product cross-product crossproduct cross-product automatic frequency control cross product master agreement cross products cross-product sea surface temperature cross program elint geolocation cross-project identifier cross promotion cross protection cross purpose

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。