elemental composition是什么意思

用法例句

Determination of impurity elements in pure copper by constant current electrolysis-ICP-AES;

恒电流电解-ICP-AES法测定纯铜中杂质元素

Simultaneous Determination of 14 Elements in Vegetables by ICP-MS with Microwave Digestion;

微波消解ICP-MS法同时测定蔬菜中14种元素

Determination of 16 mineral elements and acrylamide in barley tea samples produced in three different regions of China;

不同产地大麦茶中16种元素及丙烯酰胺含量分析

A Preliminarry Discussion on the Analysis Methods for Inorganic Elements Used in the National Investigation Program of Soil Pollution;

全国土壤污染状况调查样品元素分析测试技术探讨

To Measure Variety Elements in the Soil and Mud by X-ray Fluorescence Spectrographic;

X射线荧光光谱法测定土壤及底泥中多种元素

Concentration and distribution of elements in coals from DPR Korea;

朝鲜煤中元素含量及分布

Releasing of As in Coal and Fly Ash of Chongqing Power Plant under Organic Acid Conditions;

重庆电厂炉前煤及飞灰中As元素在有机酸作用下的淋滤行为

The distribution and abundance of chemical elements in different parts of Navel orange in Fengjie County, China;

奉节脐橙不同器官元素含量分布特征

study on the features of the contents,distributions and accumulations of 11 chemical elements in soils and vegetations was carried out in each of the subalpine meadow zone ,the mountain five-flowered herbosa meadow zone and the evergreen coniferous forest meadow of the Mountain Meadow Natural Reserve in Mt .

本文研究了各生态带土壤和植被中１１种化学元素的含量、分布及生物积累特征。

he contents of twenty four chemical elements of several main soil types in the Taklamakan Desert areas were measured and obtained the natural element background values of the soils for those chemical elements.

本文通过对塔克拉玛干沙漠地区几种主要土壤类型中２４种化学元素含量的分析测定，搞清了土壤中各种元素的自然含量水平和分布特征，填补了塔克拉玛干沙漠地区土壤元素背景值的空白，同时探讨了影响本地区土壤元素背景值的各种因素。

Determination the Content of Trace Elements in Sour and Sweet Carambola Leaf;

甜、酸杨桃叶中微量元素含量的测定

Determination of trace elements in ponkan orange by flame atomic absorption spectrometry;

云南石屏碰柑桔子中微量元素研究

Determination of Trace Elements in Output Tomato Ketchup in Xinjiang by Flame Atomic Absorption Spectrometry;

微波消解FAAS测定新疆出口番茄酱中的微量元素