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With respect to syntax, the roles of tagmeme in the structure of word and sentence and Chomsky's Generative-Transformational Grammar are discussed. The spatial relation theory and existing research achievements are investigated. Having noticed the shortage of the capability of topological and metrical relation in the description of spatial information structure, the author proposes Combinational Qualitative Geometry based on the two invariables under ordinary transformations, distance ratio and direction difference, the CQG-based spatial relation system between topological and metrical constraint is thus constructed, on which several spatial relations such as parallel, perpendicularity, co-linearity, sequence and direct neighborhood are derived. Based on extended theory of spatial relation, the language anamorphosis is analyzed from the aspects of phonetics, semantics and syntax. The mere geometric and formalized spatial relation is then integrated with concrete geographic ontology to accommodate richer and indicative spatial configuration of spatial information in the different geographic context. Finally a syntax framework for spatial information is put forward.

在语法结构方面,首先阐述了法位和法素在语法结构词法和句法中的地位和作用,以及Chomsky生成转换语法的核心内容;详细介绍了地理信息系统空间关系理论及现有的研究成果;在分析现有的拓扑关系和量度关系对空间信息结构描述能力不足的基础上,提出了基于长度比和角度差两个不变量的组合定性几何,以此建立了介于拓扑及量度约束之间的组合定性关系体系,并以此为基础派生出平行、垂直、共线、次序、直接邻近等空间关系描述;本文基于扩展的空间关系理论,详细讨论了空间关系在语音、语法和语义三个方面的语言变体,将纯几何和纯形式化的空间关系与具体的地理本体结合起来,可以获得更为丰富的、更能反映空间关系在不同语言上下文中具体体现的组合关系;最后给出了一个空间信息的语法结构的基本框架。

After the other. The subject discuss Auto end-lock carton shaping condition, changing way, agglutinate angles and agglutinate complementary angle, analysis five type Auto end-lock carton structure, they are rectangular parallelepiped, vertical rectangle-terrace, prismoid, non-conventional type. By analysis discovery some discipline of Folding carton of Auto end-lock.

先后讨论了折叠纸包装自锁底结构的成型先决条件、折叠纸包装自锁底结构的变化方式、粘合角与粘合余角计算,并对直角六面体、棱台型、正六棱柱型、异棱柱、异型五种折叠纸盒自锁底结构进行分析,归纳出折叠纸包装自锁底结构的一般规律。

All the compounds are characterized by IR and elemental analysis.we design and prepare a bipyridinium supramolecular compound and six coordination compounds, which are also characterized by IR, elemental analysis and X-ray structure analysis. According to X-ray structure analysis, hydrogen bonds and n-n stocking interactions participate in the architecture of three-dimensional framework [H2L1 (NO3)2 (H2O)2]n; one-dimensional zigzag coordination polymer [Hgl21.5CH3OH]n; binuclear metallamacrocycle (HgI2L2)2 3H2O; helical double-stranded one-dimensional coordination polymer [Co2(L2)2-2CH3OH]n; double-stranded one-dimensional coordination polymer [Co2(L3)2-CH3OH-CH3CN]n; and three-dimensional compound [Cu(C5H4NCOO)2(H2O)2]-H2O with hydrogen bonds, three-dimensional coordination polymer {[Cd(C5H6NCOO)2H2O]-DMF}n, which are indirectly obtained from the precursor ligand L3 through metal ion induced the hydrolysis of diamide and self-assembled with the hydrolyzate.

我们首次合成了一个双吡啶鎓超分子化合物和六个过渡金属配合物,并通过IR谱,元素分析和X-ray晶体衍射分析对它们进行了表征。X-ray晶体结构分析表明:超分子化合物[H_2L1·(NO_3)_2·(H_2O)_2]_n是由多种氢键和芳香环间的π-π堆积作用构建的三维无限结构;[HgI_2(L1)·1.5CH_3OH]_n是一维锯齿状配位聚合物;(HgI_2L2)_2·3H_2O是双核金属大环化合物;[Co_2(L2)_2·2CH_3OH]_n是具有一维双螺旋结构的配位聚合物;[Co_2(L3)_2·CH_3OH·CH_3CN]_n为一维双链结构的配位聚合物;以及由非直线形配体L3在金属离子Cu和Cd的诱导作用下发生水解,并且金属离子与水解产物——异烟酸根离子自组装,形成了三维氢键超分子化合物[Cu(C_5H_4NCOO)_2(H_2O)_2]·H_2O和三维配位聚合物{[Cd(C_5H_6NCOO)_2H_2O]·DMF}_n。

Masonry structure is mainly applied in the multistory building in China nowadaysand in the future.

摘要砌体结构是目前我国多层住宅中应用最广泛的结构体系,在今后相当长的时期内仍将是多层住宅结构体系中的主要结构类型。

Similarly, we have investigated the stable structure of Ge20 and found that its ground state structure is different from that of Si20. But the most stable structure is also a stacked structure from the ground state structure of Ge10 (tetracapped octahedron with Td symmetry), which is in agreement with the fragment experiment.

类似地,我们首次对Ge20团簇的稳定结构进行了同样的研究,发现它的基态结构与Si20团簇的不同,但它同样以Ge10团簇的基态结构(四帽八面体,Td对称性)为单元的一个堆积结构,这与碎片实验结果吻合。

The properties of all phase composition s, types of main crystalline phase, sizes of grains and their distribution, properties of daily steatite ceramics were described in this paper.

叙述了日用滑石瓷结构中的各种物相比例,主晶相类型、粒径大小及其分布状态、性质,介绍了其具有晶体小、结构细微、光学性质相似,具有同质异构体的独特显微结构,探讨了显微结构与生产工艺、各项性能的相互依赖关系。

Based on the fact that the stable tautomer of NTBC by calculation is different from that from X-ray experiment, the quantitative structure-activity relationship (Comparative Molecular Field Analysis, CoMFA and Comparative Molecular Similarity Index, CoMSIA) were studied on the five possible active tautomers in order to conjecture the structure of NTBC binding with HPPD.

基于理论计算得到的NTBC的稳定异构体结构与实验观测结构不一致的事实,利用比较分子力场和比较分子相似性指数的分析方法对NTBC可能存在的五种活性结构分别进行了三维构效分析,最终由CoMFA分析得到的最佳模型所对应的NTBC的活性结构与动力学实验推测的结合模式相吻合。

Firstly, the paper carried out test study base on the pseudo-static test under horizontal loads on four two-spanned model members of FSMRCSS, including three 1/2-scaled two-storeyed models and one 1/3-scaled three-storeyed model. By the test study, the paper analyzed the test results, including analysis on mechanical property of the constructure under vertical loads, and failure mode, deformation capacity, aseismic performance under horizontal loads and constant vertical loads. The paper also compared LFSWSUMS with FSMRCSS on aseismatic property.

本文首先对三个两跨两层和一个两跨三层的底部大空间框支密肋复合墙结构的1/2和1/3比例模型进行伪静力试验研究,通过对底部大空间框支密肋复合墙结构在竖向荷载及与水平低周反复荷载共同作用下的受力性能的试验研究,探讨了结构的变形性能、滞回耗能和破坏形态,并与框支砌体结构进行对比分析。

Using the one-atom theory, the electronic structures of Pt-electrocatalyst with fcc structure was determined as follows:(5dn)6.48 (5dc)2.02 (6sc)1.48(6sf)0.02. Compared to the result obtained by the first-principle method such as FP-LMTO, CASTEP, their results are in good agreement with each other. Comparing the calculations of physical properties such as lattice constants, cohesive energy and bulk modulus by OA method and first-principle method, the result obtained by OA method is in excellent agreement with experimental value, but the result obtained by first-principle method is not accordable. The relationship between the electronic structures and catalytic performance was explained qualitatively by OA method and first principle method according to its electronic structures. Because the d-orbital vacancies increases and static density is high around Fermi energy band, Pt has good catalytic performance.

摘 要:依据纯金属单原子理论确定面心立方结构电催化剂Pt的电子结构为(5dn)6.48(5dc)2.02-(6sc)1.48(6sf)0.02,与采用第一原理的FP-LMTO和CASTEP等方法所计算的电子结构相比较,其结果非常相近;由OA理论和第一原理方法计算的晶格常数、结合能、体弹性模量等物理参数进行比较,OA理论计算的结果与实验值较符合,而第一原理方法计算的结果与实验值相差较大;在此基础上用OA理论和第一原理方法研究了Pt的电子结构与催化性能的关系,由于d带空穴增多和费米能级附近态密度较高,导致金属Pt的催化性能很好。

For the structure stress condition, the dead load is born mainly by continuous rigid-frame, and the live load is born by both the arch rib and the main beam, the force separately bora by the arch rib and the main beam is influenced by the whole rigidity of beam and arch, and by areas of flexible hanger rod, the structure perforce is no longer same with the common beam and arch, and the inner force analysis progress is more complex to the common bridge system, especially, the multi-direction stress analysis to the combination area of pier、 arch and beam is very difficult, for such reasons, so it is very necessary and important to have stress performance analysis in the combination area of pier、 arch and beam.

从结构受力情况来看,梁体自重主要由连续刚构承受,活载由拱肋与主梁二者共同承受,各自承受力的大小受梁、拱相互整体刚度、柔性吊杆面积的大小影响,结构性能已不同于一般的拱与梁,结构内力分析的过程较一般桥梁体系较为复杂,特别是墩、拱、梁结合处的多向受力状况的分析难度更大,所以对该桥式结构,墩、拱、梁结合部的结构受力特性进行进一步地理论分析测验研究也就显得十分必要和迫切了。

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推荐网络例句

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说,如果是/否的问题回答f可看的价值观念在许多最有限坐标,然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明:基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小,它既能去除奇异点,又能保持图像中目标的边缘不变性,具有很好的滤波效果。

It explains in detail how the methods of elicitation, discussion, and induction are to be used in the physics teaching.

本文根据心理学原理论述了改革初中物理教学的必要性,并对"启发、讨论、归纳法"在物理教学中的应用作了详细的阐述。