Boron is one of the essential micro elements for plants.
硼是植物必需的一种微量元素，缺乏时植物根的生长被抑制。
This tonic contains many micro elements necessary to the human body.
这种补品中含有人体必需的多种微量元素。
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。
My work starts with a circle and becomes a cell and is concerned with a specific point between macro and micro elements.
我的作品是从一个圆的基本图形逐渐过渡与微观的细胞相融合，在宏观与微观之间寻找确切的位置。
There was shortage of research on the content of medium and micro elements, and how to manage the micro elements was restricted to the development of Guizhou flue-cured tobacco production.
贵州省植烟土壤及烟叶中量与微量元素含量研究不足，烤烟生产微肥施用不合理等问题，已制约全省烟叶品质的提高。
As proved by study on chemical compositions, thermoelectricity and micro-elements compositions of galena, it is another important mineral with rich gold and silver contents except pyrite.
对方铅矿的化学成分、热电性和微量元素组成的研究表明，方铅矿是除黄铁矿外的另一种重要的富金、银矿物。
Exceptions did exist, especially with alkali-hydrolyzable n, readily available p, readily available k, and micro-elements, which sometimes altered inconsistently with the above-said patterns.
但也有例外，尤其是碱解n、速效p和速效k以及微量元素，有时出现与上述规律不一致的情况。
Exceptions did exist, especially with alkali-hydrolyzable n, readily available p, readily available k, and micro-elements, which sometimes altered inconsistently with the above-said patterns.
但也有例外，尤其是碱解n、速效p和速效k以及微量元素，有时出现与上述规律不一致的情况。
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