主要元素
- 与 主要元素 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Actinides are not only the main fuels of nuclear energy but also the main ingredients of the nuclear wastes.
锕系元素是核能源的主要燃料,也是核废料中的主要成分。
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The Au background values are generally high in the amphibolitic rocks of the Archean metamorphic series, which is the main source bed of the region. Amphibolite facies is the major Au-bearing lithofacies.
太古宙变质岩系中的"角闪质"岩石的金元素背景值普遍较高,为本区的主要矿源层,角闪岩相是含金的主要岩相。
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The paper discussed release possibility of toxic and harmful elements during gold mining.It presented the major envi-ronmental problems that are cyanidation setups and Acid Mine drainage during gold mining.
本文主要对金矿开采中有毒有害元素的释放进行了探讨,明确了在金矿开采过程中主要的环境问题是氰化物堆浸和酸性矿坑排水问题。
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The activity of Cre recombinase is predominantly detected in the midbrain, diencephalon and olfactory bulb in the SCC4.4-iCre transgenic brain. However, it only can be observed in the caudal part of the midbrain in the SCC2.7-iCre brains. The results suggest that CYP11A1 gene expression could be differentially regulated in different regions of the brain.
结果发现,4.4 kb与2.7 kb之CYP11A1启动子皆可使Cre重组酶表现於胚胎脑部,前者主要表现在中脑、间脑及嗅球,后者仅主要表现在中脑尾端,说明了CYP11A1在不同脑区表现所需的元素有所不同,可能有不同的调控机制。
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The reaction of benzoic acid and ethylenediamine was studied under different conditions.
在不同条件下考察了苯甲酸与乙二胺的反应,对反应产物、主要副产物及反应中间体进行了分离和鉴定,通过熔点测定、元素分析和红外光谱分析,确定了产物为2-苯基咪唑啉,主要副产物为二苯甲酰乙二胺,中间体之一为乙二胺与苯甲酸形成的双盐。
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In order to find out completely the soil-wheat contaiminated by heavy metals in Tianjin sewage farm, we collect samples on the dry land and examinate contents of heavy metals in soil-wheat system. Firstly, the anthor evaluates that soil irrigated by sewage that has been contaminated slightly, the main polluting factors are Cd and Zn, and then the anthor evaluates soil according to different regions, soil types and irrigating water. Secondly, the anthor analyzes content and enrichment ability of heavy metals in different part of wheat, evaluates wheat is contaiminated by Cd widespreadly, only few samples polluted by Zn.Finally the anthor put up correlative analysis about heavy metal contents in the soil-wheat system, as well as plant enrichment coefficient and some physico-chemical properties of soil, and establishes a prognostic model about heavy metal content among wheat spike, soil, soil types, PH, organic matter and salinity with the quantifying theory.The prognostic accuracy of primarily contaminative factors is the best with compound correlative coefficient examining, the model can be founded.With improvement of living level, people need cleaner food.
为全面了解天津市污灌区农产品生产地土壤和旱地作物小麦的重金属污染状况,我们于2004~2005年对全市污灌区的土壤和小麦进行了采样,在对该区土壤—小麦系统中六种重金属元素(Cd、Cu、Pb、Zn、Cr和Ni)的含量进行检测的基础上,本文首先分析评价了污灌区农田土壤的环境质量总体已达到了轻度污染水平,主要的污染因子是Cd和Zn,同时对污灌区农田土壤分区县、土壤类型和不同灌水类型进行了评价;然后分析了重金属在小麦不同部位的含量与富集能力,评价了污灌区旱地作物小麦普遍遭受了Cd的污染,只有个别样点遭受了Zn的污染;最后对土壤—小麦系统重金属含量间以及植物富集系数与土壤部分理化性质间进行了相关分析,由于土壤类型是定性变量,本论文以数量化理论建立了小麦穗实中重金属含量与土壤中重金属全量、土壤类型、PH值、有机质和全盐量间的预测模型,经复相关系数检验,污灌区主要的污染因子Cd和Zn的预测精度最高,模型可以成立。
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This experiment was conducted to study the reasons of bovine low performance from one aspect of major matter and energy metabolism in high altitude regions. The index of nitrogen equilibrium, energy material, macroelement, microelement, ADE, AME, absorbance of phosphorus, MEm, average daily gain etc. were analyzed by field test and sampling.
为从主要物质和能量代谢方面揭示高海拔引起牛生产性能低下的问题,利用实地测试取样,对西藏农区14头牛的N平衡、能量物质、主要常量元素、微量元素、FHP、ADE、AME、P沉积、MEm、日增重等代谢指标进行了分析。
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The second part makes an innovative study of the soul of traditional Chinese graphics in the respect of "shape","essence", and "implication". The first element to be emphasized is "shape", which is mainly concerned with lineal designs and convolute designs in traditional graphics, the main two ethical factors employed in traditional Chinese design. The "shape" is a relatively complete and minute system. What is included in "essence" is to convey the effect of lucency and artistic conception in traditional plastic art, which embodies traditional Chinese philosophy and its aesthetic taste. The "implication" part makes a detailed analysis of the informative function of the particular ethical graphics from the perspective of disseminative theory. The third part is my application of the three elements in designing.
第二部分是本文的创新之处,分别从&形&、&神&、&意&三方面对传统图形的精髓进行探讨,&形&主要提取了传统造型元素中的线和具有中国民族风格的构成形式——回旋形进行着重分析,有较为详细而完整的结构体系;&神&主要结合中国的传统哲学和审美思想对中国传统造型所追求的空灵、意境进行论述,&意&主要从传播学的角度对传统图形所特有的民族信息传达功能进行分析研究。
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The study indicates that the Pb and Zn ore-forming elements probably come from the basement rocks; The initial Pb isotope could be derived from the crust-mantle mixing in the erogenic belt; sulfur isotope composition is enriched in heavy sulfur that may have come from the seawater sulfate in the synchronous sedimentation; the ore is characterized with REE enrichment, obvious fractionation of LREE and flat-pattern of HREE; ore-forming media is thermal brine fluid; both mineralization temperature and pressure are low; the metallogenic epoch is probably in late Dengying epoch of Sinian period.
研究表明,基底岩系可能为成矿元素Pb、Zn的主要来源;原始铅主要来源于壳幔棍合的造山带;硫同位素富集重硫,可能主要来源海水硫酸盐;矿石中稀土元素富集,轻稀土分异较明显,而重稀土分异不明显;成矿流体推测为热卤水性质,成矿温度为中低温,具有低压浅成成矿特点;矿床形成的初期应始于震旦纪灯影世晚期。
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Ore deposit, have been studied detailly; the orebody pattern (sedimental bedded ores combined with stringer ores of hydrothermal origin) is also outlined; four metallogenic epoches are devided; the zoning of mineralization (including zones of ores, elements, mineral assemblages and temperature of mineralization) have been depicted; the main types of wall-rock alteration are characterized as propylitization of basic rocks and pyritization-sericitization-silicification of acidic pyroclastic rocks; the origin of ores and seven kinds of main minerals have been studied; and the metamorphism and deformation of orebodies is thought mainly due to the shearing and the intrusion of subvolcanic rocks
研究了七个矿化带特别是I号矿床的矿床地质特征,描绘了矿体的双层结构(沉积矿石与热液充填交代的细网脉状矿石),划分了四个成矿期次,区分了矿化分带(包括矿石组构的成因分带、元素分带、矿物组合分带、温度分带),指出了围岩蚀变的主要特征是细碧岩青盘岩化而石英角斑质凝灰岩黄铁绢英岩化;对矿石及七种主要矿石矿物的成因作了研究;探讨了矿体的变质、变形,指出韧性剪切及次火山岩侵入的热力作用和应力作用是导致矿体变质变形的主要原因
- 推荐网络例句
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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.
47:5 法老对约瑟说,你父亲和你弟兄们到你这里来了。
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Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.
提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法,同时,采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。
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Hey Big Raven, The individual lies dont matter anymore - its ALL a tissue of lies in support of...
嘿大乌鸦,个别谎言的事不要再-其所有的组织的谎言,在支持。