macro elements 又称宏量元素 ; 常量元素 ; 大量元素 ; 巨量元素
macro-elements of structure 由一组宏观结构要素
Biological Essential Macro-elements 生物必需常量元素
macro elements and trace elements 常量和微量元素
macro and micro elements 宏量与微量元素
Macro and trace elements 宏量与微量元素
macro-amount and trace elements 常量和微量元素
Nitrogen, phosphorus, potassium are essential macro elements to plant growth, and also commonly used fertilizer in agriculture.
其中氮、磷、钾是植物生长必需的大量元素，也是农业生产中常用的肥料。
Macro mineral elements content is one of the important factors effecting the herbage quality, 60species of herbage in Alashan desert district in Inner Mongolia were studied in this aspect.
常量矿物质元素含量是影响牧草质量的重要因素之一，本文对内蒙古阿拉善额济纳荒漠区60种牧草进行了这方面的分析研究。
Objective: to study the content difference of macro and micro elements in whole and varied medicinal parts of Scorpion and the correlations between curative effects and toxicities.
目的：探讨雌雄全蝎及不同药用部位的宏量和微量元素含量差异及与药效和毒性的相关性。
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