查询词典 trace elements

The origin of ore-forming matelials is investigated from field survey and analyses of trace elements and isotopes.

通过野外观察和矿石中微量元素、同位素的分析，探讨了矿床的成矿物质来源。

The students in secondary shools were not lacking in trace elements except manganese and iodine.

微量元素缺乏或过量与人体的健康、生长发育，疾病的发生、发展、治疗及预防有着密切的联系。

The trace elements for pottery sherds excavated from Zhangsidun Site in Anqing City were tested and analyzed by using ICP.

采用ICP等离子体发射光谱方法，测试分析了安徽张四墩遗址和薛家岗遗址出土陶器的微量元素，并运用热膨胀法测定了低温古陶器的烧成温度。

Objective: To explore the relationship between trace elements Cu, Zn and metabolism of free radicles in the liver kidney, skeletal muscle and serum of the fatigued SD rats.

目的：探讨疲劳状态下SD大鼠肝、肾、骨骼肌、血清中铜、锌这两种微量元素的分布变化，并分析其变化与大鼠机体抗氧化能力的相关性变化规律。

The results indicated that the main composition of the sample is α-AsS, with monoclinic crystal system, and there are some trace elements of Ca, K, Mg, Fe, Al, Pb. The appearance of the sample is block and pillar. when heated to about 273.2℃,α-AsS is translated to β-AsS, the melting point is about 304.4℃, and at about 355.5℃, the sample starts losing weight and decomposing.

结果表明：该雄黄标本主要物相为α雄黄，单斜晶系，含有少量α石英(α-SiO2)和雌黄(As2S3)，及微量Ca、K、Mg、Fe、Al、Pb等元素，表面自然结构为柱状或块状，273.2℃时发生AsS由α型转变为β型的相变，304.4℃时为AsS的熔点，355.5℃时失重分解。

The effects of different NP levels on agronomic traits, yield and qualify of spring maize were studied when potassium sulphate and trace elements balanced.

在平衡K、S及微量元素肥料的基础上，研究了不同氮磷水平下的配合施用对玉米农艺性状、产量及品质的影响。

Keywords: Metamorphic dehydration;High-pressure differential thermal analysis;Trace elements;Pelites

中文关键词：变质脱水作用；高压差热分析；微量元素；泥质岩

Metamorphic dehydration;High-pressure differential thermal analysis;Trace elements;Pelites

中文主题词：变质脱水作用；高压差热分析；微量元素；泥质岩

In addition, the abundance of part of trace element in the otoliths possibly has the good relevance with the responding elements in water. Through the analysis of micro-chemistry characteristics of the wild carp otoliths, the waters environment condition that wild carps live in should be possible reflected.

此外，耳石中部分微量元素的丰度与各自水体的特征可能存在较好的相关性，利用野生鲤鱼耳石的微化学特征应该可以反映其所生活水域的环境状况。

Black glutinous rice wine had high solid content and low trace elements content.

黑糯米酒固形物含量高而微量元素含量低。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。