重元素同位素 的英文怎麼說
中文拼音 [zhòngyuánsùtóngwèisù]
重元素同位素
英文
heavy element isotope-
Isotopes are different varieties of the same element, which have identical chemical properties but differ in atomic weight
同位素是同一元素的不同種類，它們有著相同的化學特性但是原子重量不同。During the course, the belief and sense of urban citizen presented dislocation, such as moral weakens, values multivariety hedonistic life - style spreads, and so on. lt requires timely guidance, social urban civil culture is important leading force. as the same time, urban civil culture can provide spiritual impetus for city building. lt can not only raise citizen ' s quality, hasten the modernization, civilization and market of city, but also achieve the developmental object of social culture, raise civil culture level of all nation to strengthen urban civil culture
在轉型過程中，城市公民在信仰觀念上出現了錯位，諸如道德觀念淡化、價值取向多元化、享樂主義生活方式泛化等等，需要予以及時引導，社會主義城市公民文化是重要的引導力量。同時，城市公民文化可為城市建設提供精神動力。加強城市公民文化建設不但可以提高市民素質，促進城市的現代化、文明化和市場化，還有助於實現社會主義文化發展目標，提高全民族的公民文化水平。The large number of radioactive isotopes among the heavy elements fit into three series.
重元素中的大量放射性同位素分屬於三個系列。Based on the studies of microthermometry, gas composition, liquid composition, rare earth elements, ore - forming elements and 13c, d, 18o of fluid inclusions from the mineralization district and the representative deposits, such as zacun gold deposit, shuixie copper - cobalt deposit, shiyancun stibium deposit and bijiashan stibium deposit, two metallogenic fluid systems have been distinguished, i. e., zijinshan metallogenic fluid system and gonglang metallogenic fluid system in weishan - yongping mineralization district
礦化集中區及扎村金礦、水泄銅鈷礦、石巖村銻礦、筆架山銻礦等典型礦床流體包裹體的顯微測溫、氣相成分、液相成分、稀土元素、重金屬元素及~ （ 13 ） c ， d ， ~ （ 18 ） o穩定同位素的研究表明，雲南巍山-永平地區銅金多金屬礦化集中區存在兩個成礦流體系統：紫金山背斜成礦流體系統與公郎弧成礦流體系統。Lastly, it will emphasize that while the particular international structure provides systemic constraints and fundamentally formulates foreign policies of particular states, the systemic pressures are translated through unit - level intervening variables, and that some unit - level factors largely determine the specific transformation process of the atlantic alliance and nato
現實主義的解釋強調人們應該繼續關注國家尤其是大國對於它們在特定國際結構中相對權力地位以及安全目標的追求動機。同時，我們需要注重研究單元層次上的國內政治因素和國家決策層的解讀因素對于形成國家對外政策行為和具體國際結果的干預作用。The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change
結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素（ ce 、 la 、 y 、 dy ） 、能量（超聲波、磁場）介入后，沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化，表現在：鍍液的陰極極化過電位和極化度降低，沉積速度提高；鍍層的結合力、表面質量改善；鍍層中過渡族元素的含量增加，輕元素硼的含量降低，同時證實了稀土元素與過渡族元素共沉積的可能性；鍍層的顯微結構由非晶態向微晶和多晶態轉變；鍍層的顯微硬度與耐磨性提高，力學性能優化；鍍層的矯頑力降低；磁導率提高；鍍層的磁化強度在能量（超聲波、磁場）和輕稀土元素ce 、 la介入后提高，重稀土元素y介入后降低。During the 3d finite element calculation, try to simulate different procedure of the construction ( like sunk well in - filling, main cable erection, box girder hoist, bridge flooring and opening to traffic ). and then, reveal the regulation of deformation and displacement on the foundation and soil during different period. after got these, this thesis put great attention on the analysis of the reason which cause the horizontal displacement of the cable saddle, as well as the regulation of the pressure ' s changing in the soil located on the front side of the sunk well foundation
在三維有限元計算中，對不同工況（沉井充填、錨體澆築、主纜架設、箱梁吊裝、橋面鋪裝以及通車運營）下的施工過程作了模擬，全面揭示了各工況下錨碇沉井基礎與地基土的變形變位規律，著重分析了影響散索鞍水平位移的因素以及不同工況下沉井前測地基土水平向抗力變化規律，並提出了不同深度地基土水平向抗力與水平位移間的擬合關系。If so, the grains would contain a wide variety of isotopes from elements heavier than lithium
假如如此，塵燼里就會包含諸多種類的比鋰重的元素的同位素。Major, trace element composition and sr - nd - pb isotopes of the cenozoic basalts from yangyuan ( hebei province ) and datong ( shanxi province ), which are located to west of the daxinanling - taihanshan gravity lineament, as well as mineral chemistry, major and trace element composition and sr - nd isotopes of mantle xenoliths from yangyuan are reported in this thesis
本文報道了大興安嶺-太行山重力梯度帶以西河北陽原和山西大同新生代玄武巖的元素和sr - nd - pb同位素地球化學及陽原幔源包體的礦物化學、元素和sr - nd同位素地球化學，據此對華北克拉通西部上地幔的性質和過程進行了初步討論。We can apply these digital tenor models to solve problems confronted during deposit exploration. those models can help study shape, scale and distribution of different ore bodies in the deposit area, reveal the relationship between tectonics of the deposit area and copper deposit realization, they can also offer some information for deposit exploration and laneway digging
應用數字品位模型（ dtm ）可以形象直觀地反映礦區銅元素分佈規律及不同礦體的產狀、規模；展示礦區構造與銅元素礦化的關系；可以為礦山開采和巷道開拓提供重要的參考資料；還可以由已知推未知，為礦區外圍找礦提供輔助性信息。Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction
目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素，以便充分掌握影響孔度大小、分佈、形態的因素，使孔度調控范圍得以拓寬，使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發，分析熱致相分離聚合物多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備聚合物多孔膜.熱致相分離法制備多孔膜是高聚物均相溶液在淬冷條件下發生相分離的過程，它適用於上臨界共溶溫度型聚合物一稀釋劑二元體系.熱致相分離法成膜的過程，可以認為是旋節線機理佔主導地位.熱致相分離法制備的微孔材料，其孔隙率、孔徑大小、結構形態與聚合物稀釋劑的種類、組成配比、聚合物濃度、聚合物分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜，通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中聚合物-溶劑體系的相圖測定，不同厚度的多孔膜形貌研究，不同x （聚合物-溶劑相互作用參數）體系所制備的多孔膜形貌等需深人研究In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.
在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。For the thermal power plant ' s choices of development strategy, the real situation of power market and power plants in china at present was considered in the paper. the paper pointed out national power policy, barrier of entering in or dropping out power industry, position of the power plant and all these factors which were important to power plant for choosing its strategy in transferring from demand economy to marketing economy. the power plants are classified by its situation, and given its suitable strategic models, which were low - cost strategy, diversification strategy, readjustment strategy and liquidation strategy
在火力發電企業戰略選擇方面，本文根據我國目前電力市場化的實際情況和火力發電企業的現狀，在電力企業由計劃經濟向市場經濟轉化過程中，對影響企業戰略選擇的宏觀能源政策、行業進入壁壘、企業在電網中的地位等重要因素進行了分析，並對目前的電力企業進行分類，提出了適用於不同企業的低成本戰略模式、多元化戰略模式、調整戰略模式以及清算戰略模式。Soul singer erykah badu and trumpeter roy hargrove are also washington alumni. norah played her first gig on her 16th birthday, an open - mic night at a local coffeehouse, where she performed a version of i ll be seeing you that she d learned from etta james treatment of this billie holiday favorite. while still in high school, norah won the down beat student music awards for best jazz vocalist and best original composition in 1996, and earned a second sma for best jazz vocalist in 1997
此次第一張個人專輯come away with me ， norah展現她精湛的琴藝與迷人的嗓音，專輯同名曲come away with me遠走高飛為四重奏編制的抒情慢板歌曲， norah溫熟的嗓音表現頗有大將之風，讓人不禁想起另一位爵士女伶diana krall seven years則以靈魂樂作為基調，搭配藍調音樂里慣用的空心吉他滑弦技巧，將爵士靈魂流行民謠等元素完美結合，是首相當精採的作品。The testing of heavy metal elements in different parts of wenshan gingseng at different stages
三七生長初期不同部位重金屬元素含量測定These mafic dykes may provide some important insights about the mantle processes at ca. 1800 - 1700 ma and their geodynamic implications. unfortunately, more attention has been paid to palaeomagnetic, petrologic, lithochemical and k - ar geochronological studies of these mafic dykes
該論文現在對作為華北陸塊早元古代基性巖墻群重要組成部分的南太行山地區基性巖脈開展了較為系統的年代學、元素和同位素研究，以期為理解華北陸塊1800ma構造背景提供新的資料。The technique, which borrows from fusion energy research, takes advantage of the fact that 99. 9 percent of the radioisotopes in the waste are heavy elements, says company head john r
該公司的老闆吉爾蘭說，核廢料中99 . 9 %以上的放射性同位素是重元素，他們的技術就是利用這個事實，而靈感是從核融合研究借來的。The ratios of the different isotopes differ depending on where and how an element was formed, and are therefore an important clue to the conditions of the element ' s formation
不同同位素的比例不同與元素在何時何地形成的有關，因此這是元素形成環境的重要線索。分享友人