模

Along with the renewal and improvement of world casting industry process,the production method of digs fight body also changes unceasing.400 stand rises banket body in vanish mold manual pattern making structural design and the production manufacture process were introduced,the appearance assembly way as well as the EPS froth raw material basic request...

本文介绍了400立升挖斗体在消失模手工制模中的结构设计和生产制造过程，对模样的组装方式以及对EPS泡沫原料的基本要求、手工制模的技术要求均作了探索，为各种规格挖斗体手工制模的生产提供了技术依据，以便用较先进、较经济的铸造工艺来生产出质量较为可靠的挖斗体。

Choice of materials for Q235, The choice program is stamping process Piercing blanking -- thinning Burring -- Wedge-bending -- U-shaped curve In this program of cost savings but also appropriate to increase production efficiency, use of this program will mainly involve the following four die : Punching blanking die;(2) thinning Burring die;(3) Wedge-bending modulus;(4) U-bending modulus.

选择的材料为Q235，选择的冲压工艺方案是冲孔落料--变薄翻孔--斜楔式弯曲--U型弯曲，此方案在节约成本的同时也适当的提高了生产的效率，采用此方案将主要涉及到以下四套冲压模具：（1）冲孔落料模；(2)变薄翻孔模；(3)斜楔式弯曲模；(4)U型弯曲模。

In this paper, we study the relations between n-absolutely pure modules and n-flat modules and define finite present n-flat modules and finite copresent n-absolutely pure modules.

一绝对纯模和二一平坦模的关系作了进一步的讨论，并定义了有限表现。一平坦模与有限上表现的。一绝对纯模，进而讨论了他们之间的Morit时偶性质。

This paper analyzes the principle of the LP-LFC process,presents the physical and mathematical models of mould filling of the new process. The patterns including window-plate, ladders cluster, electromotor frame and exhausting manifolds are poured using LP-LFC process with AZ91D alloy, and the mould filling course is tracked with electrode touch point method. Based on above tests and experiments,the casting defects including short runs, cold laps, trapped gas,metal penetration, and so on, were investigated. The appearance characteristics,birth causes and influence factors of above defects are discussed in the article,diagrammatize modes of the defects forming is also given, and the measures of reducing or avoiding defects are put forward.

本论文分析了低压消失模铸造技术的工艺原理，建立了低压消失模铸造过程中金属液充型的物理和数学模型；在各种工艺条件下浇注了薄板窗体、阶梯模样簇、电机外壳和发动机排气管四个典型的模样和产品，用电极触点法记录了镁合金低压消失模铸造的充型过程；试验研究了镁合金低压消失模铸造中出现的浇不足、冷隔、气孔、粘砂等典型缺陷，分析了这些缺陷的形貌特征、形成原因及影响因素，给出了缺陷形成过程的图解模型，提出了减少和消除缺陷的工艺措施。

Some new conceptions are presented about the dissipativity theory of Ito stochastic differential systems as follows:dissipativity in module,equi-dissipativity in module and uniform dissipativity in module.

提出了有关Ito型随机微分系统耗散性理论的新概念：按模耗散、按模等度耗散和按模一致耗散，并利用Lyapunov方法，借助于Ito微分公式沿着Ito型随机微分系统的解对所构造的Lyapunov函数求导数，给出了Ito型随机微分系统有关按模耗散理论的一些代数判据，获得了与确定性常微分系统耗散性理论相对应的结论，最后的算例证明了该方法的有效性和可行性。

In this paper, based on the knowledge about the change in the microstructures and mechaniacal properties of the cast irons with the influence of temperature, stress and thermo—mechanical circulated load in working cycle of ingot mould, the temperature and stress fields have been analysed by means of thermo-elastic-plastic finitive element, and futher, the behavior of thermal stress factors in every working cycle of the mould have been investigated, by which principles for optimum design of ingot mould's structure has been put out.

本文以钢锭模一个使用周期内的温度场、应力场及热一力循环载荷作用下铸铁的组织结构和力学性能的变化规律为基础。利用热弹塑性有限元法对钢锭模使用过程中的温度场及应力场进行了分析，并进一步研究了钢锭模在每个使用周期间的热应力参数的变化规律，提出了钢锭模结构优化设计的基本原则。

Jerrodd felt uplifted, as he always did when he thought that his own personal Microvac was many times more complicated than the ancient and primitive Multivac that had first tamed the Sun, and almost as complicated as Earth's Planetarv AC that had first solved the problem of hyperspatial travel and had made trips to the stars possible.

谢路感到很是兴奋。他每次想到这问题都有同一的感觉∶他现时个人拥有的「微型模」，比起那首次驯服太阳，既古老又原始的「茂的模」，不知复杂多少倍。比起那首次解决了超太空飞行的难题，使星辰间的旅程成为可能的地球「行星模」（历来最大的「行星模」。）其复杂性也不相伯仲。

Considering its complex geometric topology, multi states of self-equilibrium stress and modes of inextensional mechanisms, a prestress optimization strategy was proposed to solve the final feasible prestress distribution problem of the structures with multi states of self- equilibrium stress, where the decomposition and assembly method of modal matrix, the theory of structural equilibrium matrix and the singular value decomposition method were utilized.

考虑该结构几何拓扑复杂、多自应力模态与机构位移模态的特点，应用平衡矩阵理论与奇异值分解算法，通过模态矩阵的分解组合方法，给出一种具有一定普遍意义的预应力优化策略，使多自应力模态结构体系的最终可行预应力分布求解得以简便的实现。

The socles and Jacobson radicals are important tools for characterizing the structure and properties of rings and modules.

环论和模论的主要任务是刻划环与模的结构和性质，而环与模的基座和Jacobson根是刻划环与模的结构和性质的重要手段。

Firstly,by the analysis of influencing factors of settlement of loessal foundation, results indicated that among the three settlement methods such as the layer-wise summation method based on chord modulus, the layer-wise summation method based on modulus of compressibility and the layer-wise summation method based on modulus of deformation and so on, the layer-wise summation method based on chord modulus is superior to the other two methods and is very close to the actual measurement settlement of building according to the grey incidence analysis on influencing factors of settlement.

本文采用灰色系统理论中的关联分析法对黄土地基变形进行了因素关联分析，并取得一些成果。通过分析影响黄土压缩变形的因素，对于沉降变形因素的关联分析，在对影响变形的诸因素进行分析的基础上，最终证明选择了四种因素作为确定弦线模量表依据的正确性，证明了据此建立的以弦线模量为基础的变形定量分析的表达式是可行的。从关联分析以及弦线模量法的简便、直观、便于推广应用的特点来看，弦线模量法计算沉降是值得大力推广的。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失