查询词典 structures

Many investigations show that randomicity of structures?parameter will bring large value of stochastic dynamic response of structures. Randomicity of structures?mechanics parameter may be dominant factors. Therefore, introduction of randomicity into system model of structure and using random system model are more reasonable than that of determinate system model. The work in this dissertation mainly consists of two parts.

众多的研究工作表明，结构参数的随机变异性可以引起结构随机动力响应的大幅度涨落，结构力学参数的随机性还可能成为主导因素，在结构系统模型中引入随机性的概念，采用随机结构系统模型是较确定性结构系统模型更为合理的一种选择。

Many investigations show that randomicity of structures'parameter will bring large value of stochastic dynamic response of structures. Randomicity of structures'mechanics parameter may be dominant factors. Therefore, introduction of randomicity into system model of structure and using random system model are more reasonable than that of determinate system model.

众多的研究工作表明，结构参数的随机变异性可以引起结构随机动力响应的大幅度涨落，结构力学参数的随机性还可能成为主导因素，在结构系统模型中引入随机性的概念，采用随机结构系统模型是较确定性结构系统模型更为合理的一种选择。

With reference to the marked li words in the Modern Mandarin Dictionary, 2002 edition, this paper tries to gather up the basic features of the li words from their syllable structures, acceptation structures and internal structures. In syllable aspect, the polysyllable words are dominant. For example, the disyllable words are more than 22 times of the monosyllable words. In acceptation aspects, the multivocal words are less than monovocal words. And in internal structure aspect, the compositive words are much more than the single words.

本文以《现代汉语词典(2002年增补本)》中有标注的詈词为考察对象，从音节结构、词义架构、内部构造方面来考察，初步概括出了这类词的基本特征：从音节结构上看，詈词中多音词占绝对优势，仅双音词就是单音词的22倍强；在词义架构上，詈词以单义词为主，而多义词较少；从词的内部构成情况来看，詈词中合成词大大多于单纯词。

Based on the time history analysis performed on three kinds of high-rise block masonry structures (10-story, 15-story, 18-story structures respectively) and the study on the inertia force distribution of the structures, a new pattern of lateral force distribution, namely parabolic distribution pattern, is presented here.

对3种不同中高层砌块砌体结构(分别为10层、15层和18层砌块砌体结构)进行大量时程分析，对结构的惯性力分布进行研究，提出一种新的适用于中高层砌块砌体结构Pushover分析的侧向力分布模式-抛物线型分布模式，并用该模式分别对3种砌块砌体结构进行Pushover分析。

The structures and stabilities of the ground-states for Cu13-nAgn clusters have been studied by Gupta model potential based on tight binding second moment approximation in combination with a genetic algorithm. It is found that the lowest energy structures of the pure clusters (n=0,13) are perfect icosahedron, and the structures for the bimetallic clusters (n=1～10) have stable structure which are slightly deformed with respect to the perfect icosahedron, The Cu atom prefers to occupy the center of the clusters with higher coordination numbers.

在混合团簇基态结构优化的遗传算法方案中增加了交换算子，结合Gupta紧束缚模型势研究了Cu13-nAgn团簇的最低能量结构，选择合适的交换和杂交概率，可有效地提高优化效率，优化结果表明，Cu13和Ag13是全对称的二十面体，n=1～10的混合团簇能形成稳定结构，其构型是在二十面体基础上发生畸变，Cu原子趋于处在团簇中心，随着Ag原子数目的增加，原子间的平均距离单调增加，团簇的结合能单调减小，Cu2Ag12和CuAg12只存在亚稳结构。

The material about damage to structures of Chi-Chi earthquake is collected and based on it the isoseismal is plotted using the method of mean damage index.(2) Three kinds of structures as for masonry structures, RC frames and RC shear wall frames are chosen for their generally popularization.

2选取了量大面广，且震害资料丰富的砌体、钢筋混凝土框架和钢筋混凝土框架剪力墙三类结构，计算了它们在多种地震动作用下的地震损伤，并研究了这三类结构的损伤与地震动幅值、频率、持时和能量特性等15个地震动参数之间的关系，以确定地震动参数与结构损伤之间的相关性，进而探求地震动的破坏势。

Through the experiments of three kinds of models mentioned above, the structural deformations of "outflow-extension","strike-slip-extension" and "uplifting-extension" are studied and some viewpoints involving that the plastic flow in the lower lithosphere controls the extensional structures are stated as follows:(1) Regional extensional structure does not result from the direct extension along the upper crust, but from the plastic flow in the lower lithosphere and its dragging and stretching the upper crust;(2) Deformation of continental extensional structure resulted from the active uplifting of mantle is conditional that the significant extension occurs only in the models with free- or outflow-boundary condition on both sides, whereas the passive uplining of mantle exists widely, because it is an inevitable consequence of the efiect of thermo-gravity isostasy;(3) Strike-slip shearing in the lower ductile lithosphere, including site-restricted and site-unrestricted shearing, can result in various types of extension structures;(4) The"graben-horst"type extensional structures can be formed in difierent mechanisms, including outnow-extension, shear-extension, uplifting-extension and their synthetical action.

通过上述三种模型的模拟试验，比较系统地研究了"泄流-伸展"、"走滑-伸展"和"上隆-伸展"等构造变形，提出岩石圈下层塑性流动控制了各种伸展构造变形的观点，主要包括以下几方面：(1)区域性伸展构造不是上层直接受到拉伸，主要是下层流动牵引上层伸展；(2)地幔主动上隆引起大陆伸展构造变形是有条件的，需要侧边伸展或不受约束的边界条件，而被动上隆广泛存在于地壳断裂或减薄部位，是热和重力均衡的必然结果；(3)下层塑性流动中的走滑剪切，包括限位剪切或非限位剪切，可以引起不同型式的伸展构造；(4)总结了"堑-垒"型伸展构造的多种成因机制，包括泄流、走滑、上隆及综合作用均可形成"堑-垒"构造，但组合形式不尽相同。

Aimed at load-carrying mechanism, systematic study was made on the functions of basic topological structures and some functional structures of the cylinder head, such as sprayer jacket, ports, strengthen rib, jobbing sheet, etc., in the load carrying system. Moreover, the deformation characters of these structures in the processes of carrying and transmitting loads were also thoroughly studied by the thesis.

针对气缸盖承载机理，系统地研究了气缸盖中的基本拓扑结构和气缸盖中一些功能结构——喷油器护套、气道、气门导管座孔、中隔板和加强筋等结构在气缸盖承力体系中的作用，以及这些结构在承受和传递载荷过程中的变形特性。

In the past, space latticed truss structures were treated as exceptional and non-traditional structures, but now are accepted as the economical and comfortable structures, and have been hot constructions during recent years.

过去，网架结构被认为是一种异常而非传统的结构，而现在却已被普遍地接受，成为一种既经济又美观的、深受喜爱的结构。

Lazurite,hauyne and nosean are sulfate-rich members of the sodalite group minerals,in the structures of which there are observed one-dimen sional or multidimensional structural modulations, anti-phase domain structures and twin domain structures.

在黝方石、蓝方石和青金石等富含［SO4］2-的方钠石族矿物的有序结构中，常见有沿着一个或几个方向的结构调制，并还常伴随出现反相畴、双晶畴等畴结构。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。