试验表明：稀土及其复合孕育剂能有效地消除微量元素的危害，改善铸铁的组织和性能。
It was showed by experiment that re and RE-containing inoculant could effectively eliminate the harmful effects of trace elements, and improve the structure and properties of cast iron.
该蛇绿岩有高的稀土和微量元素丰度，表明其来源于富集地幔。
This ophiolite has higher REE and trace element abundances, suggesting it was derived from the enriched mantle.
本文主要结合该矿床的分布与地质特征，研究了微量元素和稀土元素的地球化学特征。
The geochemical characteristics of trace and rare-earth elements are studied in conjunction with the distribution and geological characteristics of the ore deposit.
从微量元素、稀土元素、同位素等方面论证了霍各乞矿田中元古宙为大陆边缘弧后裂谷盆地构造环境。
The studies of microelement, rare earth element and isotope compositions that the Huogeqi polymetallic ore field was formed in rift basin of back arc continental marging during Proterozoic Era.
通过对微量元素和稀土元素的研究，可以得出广汉粘土层的形成具有同源成分特征。
Through the study about lanthanon and trace element, we can obtain the Guanghan claypan formation that has the homologous ingredient characteristic.
萨尔托海蛇绿岩由稀土和微量元素图解表明属岛弧型蛇绿岩，与地质背景一致。
The Saertohai regional ophiolites demonstrated by discrimination diagram of trace elements and rare earth elements belong to island arc type, and are consistent with the geological background.
微量元素比值蛛网图和稀土元素配分型式具有岛弧钙碱性玄武岩的特征。
The spider diagram of trace element ratio and the REE distribution patterns show the characteristics of the island arc calc alkaline series.
利用稀土元素和微量元素，分析鄂尔多斯盆地中部上三叠统延长组母岩类型和物源方向。
Rare earth elements (REE) and trace elements were used to analyse source rock and source direction of Yanchang Formation of the Upper Triassic in Ordos Basin.
石炭纪酸性火山岩的稀土和微量元素地球化学特征与陆内流纹岩相似。
The silicic volcanic rocks of Carboniferous times has similar REE and trace elemental geochemistry as continental rhyolite.
研究了稀土和微量元素对鸡胚生长发育的影响及吸收分布情况。
To investigate how rare earth and trace elements affect the growth of embryo, its absorption and distribution, Hailan strain eggs were used as the experiment material.
稀土元素作为微量元素加入铝、镁合金中，可以净化合金熔体，细化、变质微观组织，减少夹杂。
The addition of rare earth (re) as trace elements to aluminum or magnesium alloys can purify the melts, refine and modify the microstructure, reduce the inclusion.
油页岩灰渣中稀土元素和微量元素富集度均高于油页岩。
The contents of both REE and trace elements in the oil shale residue are higher than those in oil shale.
采集洪湖湿地两个具有代表性的湖底沉积柱进行对比，应用电感耦合等离子体质谱(ICP - MS)考察了沉积柱中微量元素及稀土元素的纵向分布特征。
The vertical profiles of trace elements including rare earth elements (REEs) in the two typical sediment cores of Honghu Lake wetland were investigated using ICP-MS.
它们在成矿地质背景、成矿元素、微量元素、稀土元素、稳定同位素、成矿流体性质及成矿物理化学条件等方面均具各自的特征。
The three series are distinct from each other in geological settings, ore-forming elements, minor elements, REE, stable isotopes, ore-forming fluids and physicochemical conditions.
基性岩墙和玄武岩的稀土元素、微量元素、形成环境等均与板内玄武岩或典型的地幔柱成因玄武岩具有相似的特点。
Rare earth elements (REE), trace elements and forming environment of basic dykes and basalt share similar characteristics with plate basalts and typical basalt formed by mantle column.
稀土元素以及微量元素分布形式揭示出红粘土与第四纪黄土-古土壤风成成因的相似性。
The distribution patterns of rare earth elements and trace elements indicate the similarity of eolian origin between the red clay and Quaternary loess and paleosols.
在岩矿鉴定的基础上，对晋中冀西太原组中段普遍发育的一层火山事件层做了岩石化学、稀土元素和微量元素分析。
A volcanic event layer in the Middle Taiyuan Formation of Late Palaeozoic is widely distributed in the central Shanxi and western Hebei.
本文概括了这两个地区的玄武岩类在岩石学、地球化学、稀土和微量元素等方面的差别和各自的特点。
This paper studies difference between volcanic rocks in the two areas on the basis of petrology, geochemistry, ra...
本文概括了这两个地区的玄武岩类在岩石学、地球化学、稀土和微量元素等方面的差别和各自的特点。
This paper studies difference between volcanic rocks in the two areas on the basis of petrology, geochemistry, ra...
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