major elements是什么意思

网络释义

用法例句

Supergenic geochemical characteristics of major elements in red soils in South China;

华南红土主元素表生地球化学特征

The acid dissolution technique is characterized by low detect limit and available for measurement for all major elements but Si and ca.

报道了采用酸溶和碱熔分解硅酸盐岩石样品、用ICP-AES和ICP-MS联合测定岩石的主元素和微量元素的分析方法。

The results of major elements analysis showed the contents of Al_2O_3,TOFE,CaO,MgO,K_2O,Na_2O and TiO_2 in fluvial-lacustrine facies and paleosols were apparently higher than that in paleo-mobile dune sands;contrary is the contents of SiO_2 for them;and thus these major elements constituted the similar half nine "element cycles".

主元素分析结果显示,该剖面MIS3层序中河流相、湖相和古土壤的Al2O3、TOFE、CaO、MgO、K2O、Na2O、TiO2含量明显高于古风成砂,而SiO2则相反,构成与沉积旋回相应的9。

The change cycles of major element in Salawusu River valley since 150 ka B.P.;

150 ka B.P.以来萨拉乌苏河流域主元素变动旋回

Content variations of the major elements and their potential implications to pa-leoenvironment have been dealt with for the sediments of core 97--37 from the southernSouth China Sea, and an element--stratum series, which corresponds to the oxygen iso-tope strata series rather wel1, has been constructed based on the variation of MgO/Al2, O3,ratio.

探讨了南海南部97－37钻孔沉积物中主元素的含量变化特征及部分特征地球化学指标的潜在古环境意义，并建立了基于 MgO／Al2O3比值变化的元素地层序列。

, major elements (including the trace element of Cr, Co and Ni) of 12 samples and rare earth elements (REE) of 7 samples are tested.

在岩石取心和岩石薄片不多的情况下，为了对本区火山岩准确定名，了解本区火山岩的地球化学特征以及岩浆的结晶分异等岩浆作用的形成和演化，对本区１２块火山岩的主元素分布（包括铬、钴、镍等微量元素分析）和７块火山岩的稀土元素进行了分析。

Charicteristics of main elements and their palaeoenvironment significance of Core 191 in the northern South China Sea;

南海北部191柱状沉积物主元素特征及其古环境意义

ICP-AES was used for the determination of main elements in silicon-aluminium-barium alloy.

利用ICP-AES法测定硅铝钡合金中主元素,通过对溶样方法、溶样时间、元素分析谱线和背景校正扣除的综合分析优化了测定条件。

With orthogonal test, the relation of four main elements C, Cr, Mo, V and HRC,a k were mainly examined.

采用正交试验法，重点考察了Ｃ，Ｃｒ，Ｍｏ，Ｖ四种主元素与力学性能指标ＨＲＣ和ａｋ之间的关系。

Two rules of determining the principal element in simplex method;

单纯形法中确定主元素的两个新法则

The author discusses the necessary and sufficient conditions under which polynomial identities d G kk (AX)= d G kk (X), X∈M m(c) , where d G kk denotes matrix function derived from principal element of unitary matrix representation Δ of the group G , and G is a subgroup of the full symmetric group S m .

讨论多项式恒等式dGΔkk(AX) =dGΔkk(X) (dGΔkk常简记为dGkk) X∈Mm(C)成立的充要条件 ,这里G是m次对称群Sm 的子群 ;dGkk(A)是群表示Δ的主元素Δkk诱导的矩阵函

Geochemistry of major elements from the Cretaceous Taoqihe Formation-Taipinglinchang Formation sandstones in the Sunwu-Jiayin Basin;

孙吴-嘉荫盆地白垩系淘淇河组-太平林场组砂岩主量元素的地球化学特征

In this paper a method for the direct determination of the major elements(S,Cl,K,Ca)in brine sam- ples by the energy dispersive X-ray fluorescence spectrometry is reported.

用模拟卤水建立一套能量色散X射线荧光光谱法测定卤水中硫氯钾钙主量元素含量的方法。

Major element characteristics of sandstones from different kinds of basin are a function of particular provenance types and tectonic environments, and provenance analysis of basins may be performed using major element diagrams.

一定的砂岩地球化学特征对应于特定的源区和构造环境,利用主量元素图解可以进行盆地物源分析。

The β2-isomer Keggin structure heteropolytungstoarsenate complexes containing main group elements have been prepared and characterized by ICP,UV,IR,XPS,XRD and 183W NMR.

合成了4种主族元素取代的钨砷杂多配合物,通过ICP和TG曲线确定其通式为:K11,12〔M(AsW11O39)2〕。

The results show that the new compounds are of Keggin structure,and the main group elements have already entered into the skeletons of new compounds.

结果表明,新配合物具有典型的Keggin结构,且主族元素进入到配合物的骨架中。

Determination of Primary and Minor Elements in Manganese Ore by X-Ray Fluorescence Spectrometry and Sampling by Fusion

X荧光熔片法测定锰矿中的主元素和微量元素

Microwave digestion MICP-AES tests main alloying elements in Cr12 high carbon steel

微波消解ICP-AES法测Cr12高碳钢主元素

an alloy whose main constituent is nickel.

主要元素为镍的合金。

The Principal Component Analysis of Central Trace Elements in Four Shellfish

4种贝类主要微量元素的主成分分析

Consider the example of water polo as a metaphor for the different classes of elements: the swimmers are the processing elements, the ball is the data element, and the water is the primary connecting element (the “glue”).

假设把水球比作不同的元素类型：游泳者是处理元素，球是数据元素，水是主要的连接元素。

Physical properties of major Metal Elements

主要金属元素之物理性质

This alloy is mainly composed of element chromium and nickel( titanium, vanadium, manganese).

这种合金主要由元素铬和镍（、、）成。

The master is empty. Nothing will be created.

该主控文档为空。将无法创建任何元素。

General Inorganic Chemistry: main group elements and their compounds.

基础无机化学：主族元素及其化合物。

being the essence or essential element of a thing.

某事物的本质或者主要元素。

Senate was leading the-three-facts.

元老院在三大要素中居主导地位。

The sum of the elements of the principal diagonal of a matrix.

一矩阵中主对角线元素之和

calcium is a main metal clement in the scales besides silicon;

钙是除硅以外最主要的结垢金属元素;

Classic themes, but with a contemporary edge.

经典的主题，但融入了当代的元素。

Usage: Shea butter and microelement etc.

主要成份：乳木果、微量元素、维他命。

Modernistic Elements in O.Henry s Short Stories;

欧·亨利短篇小说中的现代主义元素

On the Naturalistic Elements in Jack London s Works;

论杰克·伦敦作品中的自然主义元素

Interpretation on the Feminism Gothicism in Jane Eyre;

解析《简·爱》中的女性哥特主义元素