阿基米德
- 名Archimedes
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阿基米德活跃于公元前三世纪;阿基米德是公元前三世纪的人。
Archimedes flourished in the3rd century B.C.
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阿基米德说过一句话:给我一个支点,我可以撬动地球。
Archimedes said , saying : Give me a fulcrum , I can leveraging the Earth .
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基于MATLAB的阿基米德螺旋面法线和切平面的求解研究
Study of Solving Normal Line and Tangent Plane of Archimedes Helicoid Based on MATLAB
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阿基米德蜗杆在UG中精确建模的研究
Precise Modeling of Archimedes Worm in the Environment of UG
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根据Holmes理论公式,研制出阿基米德螺旋线凹槽模具。
According to Holmes equation , Archimedes helix slot mold was manufactured .
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采用Matlab语言为工具,分析了端面传动蜗轮副的数学模型,并将其看作阿基米德锥蜗杆传动的特例,编制出它的CAD程序。
In this paper the mathematic model of the side-worm gears with the computer language MATLAB is presented , and its CAD program is given .
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基于SolidWorks的阿基米德蜗杆蜗轮建模方法探讨
Study on the Method of Modeling Archimedes Worm and Worm Wheel Based on SolidWorks
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阿基米德COPULA生成元的复合构造研究
Research on Composite Construction of Archimedean COPULA ' Generators
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阿基米德蜗杆在CATIA当中的精确建模
Precise Modeling of Archimedes Worm ′ s in the Environment of CATIA
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为了用控制多边形的方法表示阿基米德螺线,本文构造了拟Bernstein基。
In order to represent Archimedes helix with control polygon , we construct Bernstein-like basis .
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利用浇口可以更换的阿基米德螺旋线模具,研究了HDPE塑料的螺旋线流动长度(简称螺旋线长度)和浇口直径的关系。
Using Achimedean spiral mold with changable gate , the relationship between gate diameter and spiral lengths of HDPE was studied .
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本文构建一个基于三类阿基米德Copula的线性组合函数,即混合Copula函数。
We build a linear combination of three types of Archimedean Copula-based function which is a mixed copula function .
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采用XRD、四端线直流法、阿基米德法、程序升温还原(TPR)等方法研究了两种钙钛矿阴极材料复合后的相容性、电导率、孔隙率和催化活性。
The compatibility , electrical conductivity , porosity and catalytic properties were investigated by XRD , 4-DC Point , Archimedes method and temperature-programmed reduction ( TPR ) .
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依据江苏省十五计划期间的统计数据,利用DEA方法的非阿基米德无穷小C~2R模型,对江苏省十三个城市的技术创新效率进行了实证分析。
According to the non-Archimedes infinitely small C ~ 2R model , using statistical data of Jiangsu Province in 2001-2005 , the paper calculates technology innovation efficiency of thirteen cities .
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非阿基米德Menger概率度量空间中算子方程组的解及其对参数的连续性
Solution of operator equations and its continuity for parameter in non Archimedean Menger Probabilistic Metric Spaces
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以同轴波导馈电的双锥天线和自补偿阿基米德四臂螺旋天线为例讨论了多模式天线在MIMO技术中的应用。
In this dissertation , two antennas , biconical multibeam antenna and self-complementary , archimedian , four-arm spiral antenna , are discussed to introduce the applications of multimode antennas in MIMO systems .
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利用阿基米德排水法、XRD、SEM、ICP-MS等分析手段对CdTe靶材的致密度、相结构、组织形貌、纯度等性能进行表征。
By using Archimedes method , XRD , SEM , ICP-MS and other analytical tools that characterized CdTe targets density , phase structure , morphology , purity and other properties .
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Copula函数中一类被称为阿基米德Copula的函数具有其他不具备的优点,比如形式简单、对称性、可结合性。
There is a great important class of Copulas , called as Archimedean Copula which has many powerful unique properties , for example , symmetry and associative .
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对于Rn按字典顺序作成的非阿基米德空间的情形指出上述了刻画及相应的结果不成立。
Finally , it points out that the characterization and the related results do not hold for the non-Archimedean Riesz space Rn in the lexicographical order .
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用基于电磁耦合法的VHF宽频带钳型电流传感器配合基于阿基米德螺旋天线的UHF传感器的方法研究了在线检测带有交叉互联线的XLPE电缆绝缘接头局部放电。
In this paper , a method of PD on-line detection of XLPE cable insulating joints is developed , using two VHF clamp current transducers and an UHF sensor .
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在阿基米德Copula函数中,GumbelCopula和ClaytonCopula函数的密度函数都具有非对称性,能够很好的描述市场间的尾部相关性。
In the Archimedean Copula function , Gumbel Copula and Clayton Copula function has non-symmetry , so it can better describe the tail correlation of the market .
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利用SEM.XRD分析了HA陶瓷的显微结构和物相,利用阿基米德法和压汞法测试其孔隙率和孔径分布,利用三点弯曲法测试其力学性能。
Using SEM to analysis the microstructure and phase of the HA ceramics , using the Archimedes method and mercury porosimetry to test their porosity and pore size distribution , using the three point bending method to test the mechanical properties .
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博格曼的方法就是让X射线穿透那些伪造的图案,穿透抄写员的字迹,找到最初的阿基米德文本里墨水所含的铁,并生成图像,只反映出书页中的铁。
Bergman 's technique allows X - rays to pass through the forged paintings , pass through the scribe 's writing to hit the iron traces from the ink of the original Archimedes ' text and create an image just of the iron on the pages .
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论文讨论了UHF频段圆极化天线的设计方法,主要研究工作分为两个部分:1.研制了UHF频段圆极化十字交叉振子天线;2.设计了UHF频带宽波束平面阿基米德螺旋天线。
The design method of the UHF-band circular polarization antennas is presented in this paper . It includes two parts in this thesis : 1 . UHF-band crossing dipoles circular polarized antennas are designed ; 2 .
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模型实验中采用阿基米德数Ar作为相似准则,按照1/3.5的几何比例尺以及其他制约条件设计并制作物理模型,同时完成测试仪器选配和测试辅助设备装置的建立。
In this experiment , Ar number has been adopted as the criteria of similarity , the model has been designed and made according to the geometric scale of 1 / 3.5 , and the experiment equipments have been chosen for the model .
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采用阿基米德方法分别测量了含24%(摩尔分数)B的LiB合金反应完全并经冷挤压后的样品和未经第二次放热反应中间样品的密度,综合分析了以往不同研究者所测量的结果。
For the 24 % ( mole fraction ) B Li B alloy , the densities of the specimen fully reacted and cold extruded and the specimen without second exothermic reaction were measured , respectively . Several experimental results of previous different researchers were discussed .
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标准机组段分层空调模型试验以相似理论为理论基础,采用热量阿基米德数Arq作为该试验的相似准则。
This experiment adopts the theory of similarity as theory foundation , adopts Arq number as criteria of similarity , designs and makes physical model according that geometric scale is , selects experiment instrument and setting .
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根据阿基米德定律测试玻璃的密度和显微硬度,发现玻璃的显微硬度随着体系中Bi2O3含量的增加而减小,而密度随着体系中Bi2O3含量的增加而增加。
The density and micro-hardness are determined according to Archimedes law . Detection results exhibit that the hardness of the glass decreases and the density increases with the increment of Bi_ ( 2 ) O_ ( 3 ) content .
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寻找构建和谐社会的阿基米德支点
Seeking the " Archimedes Fulcrum " of Building Up Harmonious Society
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关于阿基米德合盖体积公式的注记
Notes on Archimedes ' proofs of the volume of joined umbrella