trace element

noun

1. 痕量元素
   a chemical substance that is found in very small amounts
2. 微量元素（生物，尤指植物，生长所需要的微量的化学物质）
   a chemical substance that living things, especially plants, need only in very small amounts to be able to grow well

1. (生物体生长所需的)微量元素
   A trace element is a chemical element such as iron or zinc that occurs in very small amounts in living things and is necessary for normal growth and development.
2. (金属或其他物质中的)痕量元素，微量元素
   A trace element is a very small amount of a chemical element that is found in a metal or other substance.

1. Narrated the trace element selenium with emphasis lacks in the correlation disease arises the function.
   重点讲述了微量元素硒缺乏在相关疾病发病中的作用。
2. The trace element has an important function for the growth of cultivated Rheum.
   微量元素对于种植青海大黄的生长发育有着重要作用。
3. The prospect and problems of speciation analysis of trace element in traditional Chinese medicine were also discussed.
   探讨了中药中微量元素形态分析方法的前景及存在的问题。
4. This is because of the bamboo salt mineral and trace element still kept the original, natural state, so we experience after eating bamboo salt best reduction to the original.
   这是由于竹盐中的矿物质和微量元素仍然保持着原始、天然的状态，因此我们食用竹盐后身体会还原到最初的最佳状态。
5. Applied studies on trace element in looking for new active substance
   微量元素在寻找新活性物质中的应用研究
6. Determination of Trace Element in Rose and Honeysuckle by ICP-AES Method
   ICP-AES法测定玫瑰花、金银花中多种微量元素
7. Determination of Trace Element Selenium in the Garlic by the Spectrophotometer
   分光光度法测定大蒜中的微量元素硒
8. Application of Organic Reagents to Determination of Trace Element in Hair
   有机试剂在头发微量元素测定中的应用
9. A metal trace element ( micronutrient), essential for plant growth.
   植物生长必需的一种微量金属元素（微量营养素）。
10. Effect of the Amount of Organic Trace Element Fertilizer Application on Yield and Quality of Strawberry
    有机微肥施肥量对草莓产量和品质的影响
11. Determination of Poisonous Trace Element Thallium ( I) by Catalytic Kinetics
    有毒微量元素铊的催化动力学法测定研究
12. Conclusion Fluoride have various effects on body trace element and catalase.
    结论氟对机微量元素和过氧化氢酶有不同的影响。
13. The trace element analysis by its dolomite, dolomite to explore its causes.
    本次通过对其白云岩储层微量元素分析，来探讨其白云岩储层成因。
14. Effects of trace element iron and zinc on amino acids in alfalfa sprouts were studied in the paper.
    本论文研究了富铁锌苜蓿芽培育条件、营养价值及苜蓿芽中铁锌的吸收利用等方面。
15. Description Copper is an essential trace element.
    产品说明铜是一种重要的微量元素。
16. A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.
    一种二价或三价金属元素，坚硬的银白色铁磁体，植物动物营养中的微量元素。
17. The UV spectrum study and trace element analysis of one anticancer folk prescription
    一剂抗癌偏方成药及其主料的紫外光谱研究和微量元素分析
18. The Factor Analysis of Trace Element in Chinese Medicinal Herbs for Curing Cardiovascular Disease
    8种治疗心血管疾病中草药中微量元素的因子分析研究
19. Study on method to determine trace element mercury in water
    自来水体中微量元素汞的测定方法探讨
20. Soil trace element geochemistry indicates that the area is an organic carbon and bromine negative anomaly area.
    土壤微量元素地球化学表征为有机碳含量、元素负异常区。
21. An analysis of trace element and oxide enrichment pattern is carried out by using factor analysis method.
    利用因子分析法对微量元素和氧化物的富集规律及其环境意义进行了探讨。
22. Medical laboratories aid diagnosis by making chemical and microscopical tests on body fluids and tissues. a doctor may also order tests that use radioactive trace element or X-rays to detect disease.
    医学实验室通过对体液和组织进行化学和显微镜检查辅助诊断。医生还可要求使用放射性微量元素或x射线检查疾。
23. Iron is an indispensable trace element which is easily deficient in human body.
    铁是人体必需的和易缺乏的微量元素。
24. A collection of listeners that any source or trace element can reference.
    任何源或跟踪元素都能引用的侦听器的集合。
25. Selenium ( Se) is a necessary trace element in the body, which possesses many physiological functions.
    硒作为人体必需微量元素，有多方面的生理功能。
26. Analysis of trace element content in transparent lens and senile cataract lens
    透明晶体与老年性白内障晶体中微量元素含量分析
27. Trace element test results are affected by various factors and the establishments of reference intervals are also complicated.
    微量元素检测受到多种因素的影响，其正常参考区间的建立也显得非常复杂。
28. Trace element analysis of plant sample in geological investigation
    微量元素分析方法在地质调查植物样品分析中的应用
29. Objective To study the influence of trace element iodine and selenium on the level of autoantibodies and the antioxidative capacity with autoimmune thyroiditis;
    目的研究微量元素碘和硒在自身免疫性甲状腺炎过程中对自身抗体水平及抗氧化能力的影响；
30. The major elements of the research is calcium, phosphorus based, trace element selenium in order to study the hot oriented, and the further research on interaction of elements is proceed.
    其中，常量元素研究的热点仍以钙、磷为主，微量元素研究的热点以硒为主。但其它元素和元素间的相互影响的研究也在不断深入。

noun

1. an element that occurs at very small quantities in the body but is nonetheless important for many biological processes