英语词汇ortho-para-ratio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	ortho-para-ratio
释义	ortho-para-ratio 网络释义 1 ?邻对位比 ... 邻对位向 ortho-para orientation 邻对位比 ortho-para-ratio 火成岩 ortho-rock ... 短语 1 ortho-para ratio 邻位双语例句 1 Catalytic nitration of toluene occurs by use of nitric acid in the presence of bentonite metal nitrates with useful para selectivities, up to a para to ortho ratio 1.0. 在皂土硝酸盐催化下，甲苯能被浓硝酸对位选择性硝化，对邻硝化产物比率达1．0以上。
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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。