元素的赋存状态

自然金稀土元素的赋存状态为U、Th矿物的微细包体，其分配特点可用来讨论岩金矿床的分类以及砂金的原生来源。

REE occur in U Th containing minerals as micro inclusion in native gold , the partition characteristics of which can be used to discuss the classification of hard rock gold deposits and the primary source of placer gold .

东菲律宾海表层沉积物中元素的赋存状态

Elemental occurrence phases of surface sediments from the East Philippine Sea

黑钨矿中微量元素的赋存状态葠带状构造

The existence state of minor elements in wolframite and its zonal structure

地球系统中元素的赋存状态即为元素的质的属性。

The quality attribute of element is its existent state in earth system .

煤中有害微量元素的赋存状态

Modes of Occurrence on Hazardous Trace Elements in Coal

太平洋富钴结壳中稀土元素的赋存状态

Occurrence modes of REE in the Pacific cobalt-rich crusts

用分子活化分析研究天然植物体内稀土元素的赋存状态

Study on REEs speciation in natural plant by MAA

淮南矿区煤中12种微量元素的赋存状态及环境效应

The occurrences and environmental effects of 12 kinds of trace elements in Huainan coal-mining area

稀土元素的赋存状态主要以独立矿物的形式存在。

And the preservative status of rare-earth elements mainly showed as independent form of mineral .

本文着重介绍了包钢白云鄂博矿主要杂质元素的赋存状态，包钢现行选矿工艺的降杂效果，并作了简要讨论。

The paper mainly introduces and discusses the existing state of main inclusions element in Baiyun ore , and the inclusions decrease result of the existing ore dressing process at Baotou Steel .

激光微区光谱法研究元素的赋存状态，其原理是：各种元素有其特征谱线，由特征谱线可确定元素的存在。

The occurence cf elements in ore was determined by laser micrographic spectrometry . Its principle is that each element has its own characteristic spectral lines , by which the occurence of that element can be ascertained .

结合痕量元素的原始赋存状态，总结了痕量元素燃烧的迁移富集机理和环境效应。

Based on the modes of occurrence of trace elements in coal , the combustion mechanism of trace elements was researched .

本文主要对矿床成矿元素及伴生有益元素的赋存状态及变化规律进行归纳总结。

In this paper , the metallogenic elements , the occurrence state of the useful associated elements and its changing regularity are mainly reduced and summed up .

实验结果表明：元素分布的均匀度与元素本身的赋存状态及取样量有关。

Our experimental results reveal that the homogeneity of the studied elements is related to their speciation and sampling amount .

简要概述了中国煤中稀土元素的丰度、煤中稀土元素的赋存状态以及研究稀土元素的意义。

In this paper , some aspects concerning rare-earth elements are briefly introduced , including the REE contents , the occurrence of REE and the significance of study REE .

考察燃煤重金属元素的挥发析出特性：根据重金属元素的自身特性和赋存状态，对重金属进行了有机分类：并且研究了燃烧温度、燃烧气氛、燃烧时间等因素对重金属挥发性的影响。

We classified the heavy metals according to its features and occurrence , and studied the effect that the burning temperature , burning atmosphere and burning time impacted on the volatilization of heavy metals .

从元素的含量及剖面变化、元素的相关性及组合特征，铁族元素与主元素的关系以及元素的赋存状态等方面探讨了物质来源、沉积作用和古气候，并据此进行了地层划分。

The origin of sediments , sedimentation process and paleoclimate are discussed , and the stratigraphy is classified , based on the concentrations of elements , their variations in profiles , the relationship of iron group elements with the main elements , and the storage status .

在对西南地区各含煤时代煤中稀土元素含量测试的基础上，结合煤田地质特征，分析了煤中稀土元素分布特征及分布模式，讨论了稀土元素的主要赋存状态。

Based on the testing of rare-earth elements content in coal of each age in south-western region of China , and combined with coal-geological features , analysed distributive features and distributive model of rare-earth elements in coal , and discussed main preservative status of rare-earth elements .