薄壁

This dissertation establishes numerical methods in structural analysis on the basic of variation principle, finite member element method, spline function, etc.

本文利用变分有限元法、样条函数等，提出了薄壁箱梁结构分析的数值理论和方法。

At the same time we provided the double trigonometric progressional solution at the common boundary condition. And combining with the taken test of such plate abroad this analysis method was proved to be accurate and credible.In the third chapter, reasonable finite element models for such structure were established and a static non-linear analysis was made, and we summarized the rule of this structure about the aspects of force, deformation and destruction.

第三章对薄壁箱体现浇混凝土空腹板楼盖结构建立了合理的有限元分析模型，进行了静力全过程分析，侧重分析其在竖向荷载作用下的受力性能，总结出此结构体系的内力、变形分布及破坏过程的规律，并结合国外试验和国内现行混凝土结构设计规范，对这种结构的冲切计算进行了简单的探讨，提出了冲切计算的修正公式。

The time-history method is used for calculating the seismic response of high piers under uniform excitation and progressive wave effect in consideration of pile group effect and pile-soil interaction.

建立一座5跨薄壁高墩连续刚构桥的空间抗震有限元模型，考虑群桩效应和桩-土效应，运用时程分析法计算了一致激励及行波效应下高墩的地震响应。

Raphide sacs present in parenchymatous tissues.

针晶体囊存在于薄壁组织内。

The traits of dedifferentiation and redifferentiation of the explants form H. sampsonii show that the calli the stem and leaf usually form buds at its parietal cells. In the presence of auxin, the parenchyma of the leaf gap at the node is initiated firstly, then, develops blastemata that form buds in a cluster on the node without callus. These show that the various parts ofthe herb differ greatly in cell initiation and organ differentiation.

研究元宝草外植体的脱分化和再分化的特点结果表明，茎段和叶片启动形成愈伤组织，其不定芽通常发生在愈伤组织的周边区，茎节叶腋的叶隙薄壁组织在激素的诱导下启动、分裂，不形成愈伤组织而直接器官分化成芽原基，并在节结处产生一圈成簇的不定芽，表明元宝草不同部位的细胞启动及器官分化调控存在差异。

The injured parenchymatous and resinosis cell had been dead before the nematodes arrived.

受害松苗薄壁组织和泌脂细胞在松材线虫到达侵害之前就已变性死亡。

Based on the theory of Vlasov, this paper proposed the method of spline Ritz to analyse the restrained torsion of thin walled bar with open section, combining the traditional Ritz method and spline function method.

同时在符拉索夫理论的基础上，结合传统的里兹法，利用样条函数提出了开口薄壁杆件约束扭转计算的样条里兹法。

In the analysis, a nonlinear wave vibration equation of the thin cylindrical shell including damping and items due to geometric nonlinearities was established and then transformed by Galerkin's method. With different combinations of modes different nonlinear differential equations in modal coordinates were obtained. The Runge Kutta method was used to solve the equations numerically and some features of nonlinear wave vibration were discussed.

在研究过程中，首先，考虑阻尼并引入几何非线性项，建立薄壁圆柱壳的非线性波动方程，然后，采用Galerkin方法对波动方程进行转换，选取不同的模态组合，得到相应模态坐标下的非线性微分方程，最后用Runge-Kutta法进行数值计算并对圆柱壳的非线性波动振动特性进行了分析。

Sapwood The outer living xylem cells in a tree trunk, consisting of secondary xylem elements, that are actively involved in water transport and food storage.

边材：由树干近外方的有生命的木质部细胞构成，包括次生木质部、薄壁组织和髓射线。在植物的水分运输及养料储存方面起重要作用。

In the structural mechanics method, elastic thin wall column shell and thin slab theory is used in the computation, and consider two rigid conjunctions, adopt underground frame bending moment allotment method to admeasure the wall of a well and the scaleboard bending moment.

常规的结构力学方法使用弹性薄壁圆柱壳和薄板理论计算调压井井壁与底板，并考虑二者刚性连接，采用地下框架弯矩分配法对井壁和底板进行弯矩分配。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。