查询词典 Nd

They have A/CNK values of 0.9～1.2, suggesting aluminum saturation or ersaturation, and are enriched in LREE and LILEs and depleted in HFSEs. Their δEu values are 0.11～0.32, evidently indicating plagioclase fractional crystallization.(87Sr/86Sr)i ratios and εNdvalues are 0.707?9～0.716?1 and -6.90～-7.70 for volcanic rocks, and 0.7086～0.7098 and -7.10～-7.68 for quartz syenitic porphyrite, respectively, implying that all the igneous rocks from the Yandang Mountain were evolutional products of co-magmas, and derived mainly from the crust, mixed however with mantle components.

岩石富集轻稀土元素和大离子亲石元素，相对亏损高场强元素；δEu值为0.11～0.32，表明岩浆经历了以斜长石为主的强烈结晶分异作用；火山岩(87Sr/86Sr)i为0.707 9～0.716 1，εNd为-6.90～-7.70，中央侵入体石英正长斑岩(87Sr/86Sr)i为0.708 6～0.709 8，εNd为-7.10～-7.68，表明它们是同源岩浆不同阶段分异演化的产物，物质来源主要为陆壳，但也有地幔物质参与。

Based on the isotopic compositions of samples and their distribution characteristics on the _-T,~(87Sr/~(86)Sr_i-T, and _-_ diagrams, these granitoids of syntexis series are considered as mixing products of upper crust end-member and depleted mantle end-member in certain proportion.

根据样品的同位素组成及其在￠Nd-T，(87Sr/86Sr)i-T和￠Nd-￠Sr图上的分布特征，认为这些同熔系列花岗岩类是华南上地壳端员和亏损地幔端员按一定比例混合的产物。

The R a inbow blending thre a d is a met a llic fil a ment wr a pped with a nd supported by nylon fiber, for unbe a t a ble strength, integrity, a nd memory.

在彩虹混合线程是一个包裹，金属丝和尼龙纤维的支持下，无敌力量，完整性和内存。

But because of Nd element is vivaciously active, the anti-corrosion performance of Nd-Fe-B permanent magnet is very bad.

但由于稀土元素钕性质非常活泼，导致钕铁硼永磁体的耐蚀性能很差。

What a pity my limited English at that time restrained our conversation to really simple thingsin which we rarely developed our talks deeper. I only told her my interests in moviemakings nd music. She told me her two elder counsinsformed arock band in Canada thati may find commonswith them. She was not very intelligent but warm hearted nd friendly.

最近发现，阅读对人的好处实在是很大，并且涉及很多方面，除了增长知识见闻，陶冶品味情操，还有益于人的思考能力的锻炼，更重要的是，可以帮助人沉淀心情避免浮躁并且减少看电视搜索八卦新闻这一类'闲杂'活动的时间哦，…最近读的书包括Benjamin Franklin的自传，和卢梭的Confessions，都是有关于自我的反省和检讨。

The Four Lords of the Diamond. Jack Chalker. A secret agent has his mi : nd copied into four different bodies to infiltrate four enemy worlds a : nd assasinate their rulers.

钻石的四大统治者》——杰克·查克：一名间谍将他的思想复制到四个不同的身体之内，以便渗入到四个敌人的世界中：并刺杀他们的统治者。

This thesis studies the volcanic tectono-petrofacies, petrology, mineralogy, geochemistry, isotopic chronology, stratum and high-precision SHRIMP zircon U-Pb datings of the Mt.Yandangshan volcano-intrusive complex, and concludes that: Yandangshan volcanic rock units belong to high-K calc-alkaline acid rock associations, mainly ryholitic and trachytic dacitic in composition. They have A/CNK values of 0.9-1.2 (i.e., aluminium saturation and supersaturation), enriched LREE and LILEs and depleted HFSE. Their 8Eu values are 0.11-0.32, indicating a evident fractional evolution of plagioclase crystallization. Their ∑REE varied very limitedly,(87~Sr/(86)Sri ratios and eNd values are 0.7086～0.7095 and -10.20～-9.96 for volcanic rocks, and 0.7087~0.7095 and -7.6～6.92 for the central intrusive facies syenite, which means that all the igneous rocks from Mt. Yandangshan are evolutional products of magmas with the same source, and that they derived mainly from crust, but mixed with mantle components.

本文从火山构造岩相学、岩石学、矿物学、地球化学、同位素年代学、地层学等方面出发，同时结合高精度SHRIMP锆石U-Pb定年，对雁荡山火山岩进行了系统的研究，确定雁荡山火山岩为一套以流纹质和粗面英安质为主体的高钾钙碱性酸性岩石组合，A/CNK值集中在0.9～1.2之间，为铝饱和或铝过饱和类型；富轻稀土元素和大阳离子亲石元素、相对亏损高场强元素：负铕异常明显，δEu值为0.11～0.32，表明岩浆经历了以斜长石为主的强烈结晶分异作用：岩石样品的∑REE变化有限，火山岩样品的~(87Sr/~(86)Sr_i为0.7086～0.7095，εNd为-10.20～-9.96，中央侵入体石英正长岩~(87Sr/~(86)Sr_i为0.7087～0.7095，εNd为-7.6～-6.92，表明它们是同源岩浆分异演化的产物，物质来源主要为陆壳，但有地幔物质参与。

In prticulr, Guiln Rod, genertion, erth holes, ces, dust nd so on, lot of unknown sttus re tking plce, geology is very complex, lthough we he done enough preprtory work, but it cn not be 100% in plce, nd sometimes is impossible to defend.

特别是桂澜路一代，土洞、溶洞、沙尘等，很多未知的状况都在发生，地质很复杂，虽然我们各项准备工作都做足，但也不可能百分之百到位，有时候还是防不胜防。

Also, there is no formula can be used to calculate errors of these parameters.Based on above reasons, the purposes of the research are to build a reliable geochronological framework of Paleozoic granitoid in study area, to distinguish their genetic types and tectonic settings, and to analyses their orogenic response; to derive a set of formulas for calculating errors of the paramers mentioned above; to ascertain if North Qaidam belongs to North China Block or Yangtze Block.

基于上述存在的问题，本项研究的目的是：建立研究区古生代花岗岩类精确的年代学格架，判别其成因类型和构造环境，分析其造山响应：推演出一套适用于Sr、Nd同位素初始比值和Nd同位素模式年龄等重要示踪参数误差计算的公式；确定柴北缘地区大地构造属性(华北板块还是扬子板块？)。

A person, commonly c a lled a commodity broker , a ssoci a ted with a nd soliciting customers a nd orders for a futures commission merch a nt or introducing broker.

一般称为商品经纪人，他是联系和提供咨询给客户以及在期货商品市场委任商人或介绍经纪人。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。