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
Photo Tip: When shooting in macro, choose carefully which elements to have sharp.
图片提示：在微距拍摄时，慎重选择尖锐的元素。
However, the lazy-seq macro ensures that the function will only be invoked as the elements are accessed.
不过，lazy - seq宏确保了此函数将只在元素被访问的时候调用。
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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