查询词典 rare edition

Basanite and tephrite from Mt. Crater, Cape Bird and Bonney Lake exhibit similar composition in major elements and trace elements, rare earth elements . They are enriched in MgO, TiO〓, transitional elements and compatible elements , and depleted in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements; Latite from Cape Rodeys and Cape Evens are different from basanite and tephrite, they are enriched in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements, and depleted in Mgo, TiO〓, transitional elements and compatible elements. Volcanic rocks in five regions have the same isotopic ratio of 〓Sr/〓Sr (0.703115-0.703334) and 〓Nd/〓 Nd (0.512892-0.513076), however,〓Pb/〓Pb ratio in volanic rocks from Mt. Crater, Cape Bird and Bonney Lake is lower than those of Cape Rodeys and Cape Evens.

在主元素氧化物和微量元素、稀土元素含量上，克雷克特山、鸟角和博尼湖南岸的碧玄岩、碱玄岩成分比较类似，均具有较高的MgO、TiO〓、过渡元素和相容元素，较低的SiO〓、Al〓O〓、K〓O、Na〓O、不相容元素和稀土元素；罗德角和伊万思角安粗岩雷同，它们具有较高的SiO〓、Al〓O〓、Na〓O、K〓O、稀土元素和不相容元素，较低的MgO、TiO〓、过渡元素和相容元素，但五地区火山岩几乎具有一致的Sr、Nd同位素比值，〓Sr/〓Sr＝0.703115-0.703344、〓Nd/〓Nd＝0.512892-0.513076，在Pb同位素比值上，五地区的〓Pb/〓Pb＝18.664-19.913，其中碧玄岩和碱玄岩比安粗岩的比值稍低。

The study of this thesis enlarges the application of rare earths metal- samarium in organic synthesis that has quite important meaning for our country having abundant rare earths resources. It promotes to explore the new use of rare earths metals in organic synthesis. There will be a great break in the theory and application of the production of carbene.

通过本研究扩大了稀土金属钐在有机合成中的应用范围，这对于我国具有丰富的稀土资源(贮量占世界总贮量的85%以上，稀土金属产量及质量占世界首位)而言，促进开发稀土金属在有机合成中的新用途，具有十分重要的意义；并在产生卡宾的理论上有所突破，填补了卡宾研究领域的空白，取得一些极具价值的学术成果。

Especially, the development of Ni-MH high-power battery and high-power rare earth hydrogen-storage alloy materials not only complies with the industrial policy on rare earth resource fine processing in China, but also became a key national science project – associated project for electromotion automobile industry; it's the pivot high-tech industry backed by the government and it will also accelerate the transformation of China's abundant rare earth resources to technical and economical advantages; and it will also impel the development of relative industries. Therefore, it plays a critical role to create more economic and social benefits.

特别是镍氢动力电池用低成本、高功率稀土贮氢合金材料的开发，不仅符合我国稀土资源深加工的产业政策，也是国家重点攻关项目——电动汽车产业化的配套项目，是国家重点扶持的高科技产业，将促进我国丰富的稀土资源优势转化为技术经济优势，带动相关产业的发展，具有十分重要的经济效益和社会效益。

Rare as is a true penitent, so rare is one who truly buys indulgences--that is to say, most rare.

作为难得的是一个真正的忏悔，所以难得的是一个谁真正购买indulgences -这就是说，最难得的。

The gabbro-diorites have high light rare earth elements, low heavy rare earth elements and weakly positive Eu anomalies in chondrite-normalized rare earth element curves, and with high LILEs and relative low HFSEs in primitive mantle-normalized trace element spider diagram.

稀土元素球粒陨石标准化曲线显示其具有富含轻稀土元素、贫重稀土元素以及微弱的Eu的正或负异常的特点。微量元素原始地慢标准化蛛网图上，岩体具富含大离子亲石元素，明显亏损高场强元素（Nb、Ta、Zr、Hf和Ti）等特点。

In this dissertation, two series of rare earth initiators: rare earth tri (2, 6-di-tert-butyl4-methylphenolate) and rare earth calixarene complex have been developed to ring-opening polymerize 2, 2-dimethyltrimethylene carbonate, trimethylene carbonate and ε-caprolactone at mild conditions. Both the polymerization features and mechanisms are discussed in details.

本论文为环碳酸酯、内酯的开环聚合开发了两类新型低毒性稀土催化剂：三(2，6-二叔丁基-4-甲基苯氧基)稀土配合物和对叔丁基杯芳烃稀土配合物，都可以在温和的反应条件下单组分引发2，2-二甲基三亚甲基环碳酸酯、三亚甲基环碳酸酯和ε-己内酯聚合，合成各种分子量的均聚和共聚材料，考察了催化剂结构、聚合条件等对聚合的影响，深入研究了聚合机理。

In order to investigate the relation between the ligands and rare earth ions, in this dissertation, two new polyaza cryptands, two new tripyrazolone ligands, a macrobicyclic rare earth cryptates, a tripyrazolone and a tripodal ligands rare earth complexes have been synthesized.

为了进一步研究和探讨穴醚、吡唑啉酮、三脚架化合物配体对稀土元素的配位作用，论文首次报道了两个新氮杂穴醚配体、两个新三脚架吡唑啉酮结构配体、一个系列大二环新型的稀土配合物、一个系列三脚架吡唑啉酮结构配合物、一个系列三脚架结构三酸配合物的合成。

Rare earth mine tailing is the castoff in the course of producing rare earth.Some matter of the rare mine tailing can be extracted by rain eluviating,and turned into water to pollute the environment.

稀土尾矿是稀土的生产过程中形成的废弃物，其中很多物质都会在自然条件下如雨水淋溶而浸出，进入到水体中造成环境污染。

Avalon Rare Metals, for example, owns a rare-metals property at Thor Lake in the Northwest Territories. Ucore Uranium, based in Halifax, has a project in southeastern Alaska. VMS Ventures optioned a uranium and rare-earth property in Manitoba. Billingsley's company, Great West Mineral Group of Saskatoon, owns the Hoidas Lake project on the northern fringe of Saskatchewan.

例如，在西北地区托尔湖拥有稀有金属矿的阿瓦隆稀有金属公司；坐落于哈利法克斯，在阿拉斯加东南部有项目的铀核铀矿公司；握有曼尼托巴的铀矿和稀土矿购买权的VMS投资公司；还有比利斯利的公司，在萨斯喀彻温省西北边辉达斯湖有项目的大西部矿业集团公司。

Some essential trace elements were reported to be involved in the normal bone metabolism. Nowadays rare earth elements are widely used in many fields and more and more rare earth elements enter the environment and food chains They are enriched in bone and difficult to be excreted. Because the similarity between rare earth ions (Ln3+) and Ca2+, they will intervene and regulate bone formation and remodeling.

骨骼的正常代谢涉及多种金属离子，随着稀土的应用，通过环境和经由食物链等渠道进入人体内的稀土量也有所增加，并且在骨组织中相对富集且难排出；由于稀土与钙离子的相似性，它们将干预和调控骨的形成与再造。

I think people in this lifetime in a rebirth.

我觉得人在这一生里其实也在轮回。

He had to tie her hands together.

他不得不把她的双手绑在一起。