英语词汇secondary essential element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	secondary essential element
释义	secondary essential element 简明释义次量〔养分〕元素专业释义 1 地球科学次量〔养分〕元素
随便看	target transformation factor analysis target travel target tray of tape target tube target tug target tuner target type target type flowmeter target type flowmeter target user system target validation target value target variable target vessel target video target view target visibility target voltage target volume target volume in quantity target volume in value target vulnerability target ward target warker target weight

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。