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In this paper, the forming principle of NC incremental sheet metal parts forming process, the ultimate half-apex are presented, and so on.
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本文就板料零件数控渐进成形工艺的成形过程、变形机理、极限半顶角等方面进行了探讨。 |
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In this paper, the functional relation is established among weighted average capital cost, Earnings Before Interest and Tax and due capital cost, and the best capital structure model of enterprises with relative unchangeable due capital cost is obtained.
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通过财务杠杆，建立了加权平均资本成本和企业息前税前盈余以及债务资本成本之间的函数关系，得出了企业债务资本成本相对不变时的最优资本结构模型。 |
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In this paper, the fundamental principle, characteristics and separation modes of capillary electrophoresis are summarized. And the application progress of capillary electrophoresis in environmental analysis is also reviewed.
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摘要对毛细管电泳技术的基本原理、特点以及分离模式进行了概述，对其在环境分析中的应用进展予以综述。 |
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In this paper, the fundamental problem for an infinitely long elastic strip with arbitrary cracks is studied with the method of complex variables and the theory of integral equations.
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摘要利用复变方法和积分方程理论，讨论带任意裂纹的各向同性弹性狭长体的基本问题。 |
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In this paper, the fuzzy uniform ring, fuzzy uniform subring, fuzzy uniform residue class ring, and direct product of fuzzy uniform rings are defined; the three necessary and sufficient conditions to describe fuzzy uniform ring by the fuzzy topological ri
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摘要本文定义了模糊一致环概念，研究了它与模糊拓扑环的关系及它与模糊一致空间的关系；给出了借助于环的模糊子集族对模糊一致环的刻画，还引入了模糊一致子环，模糊一致剩余类环与模糊一致环的直积；并讨论了它们的分离性。 |
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In this paper, the gain of fatigue strength of interference-fit riveting components compared with conventional riveting components is studied through tests, and the interference-fit filling effect of coronary rivet is estimated.
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摘要通过试验，研究了干涉配合铆接试件相对于普通铆接试件疲劳强度的增益，估算了冠状铆钉干涉配合的填充作用。 |
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In this paper, the general situations of the model tests are outlined in brief, the spatial plate and shell finite element model is established to theoretically analyze the model bridge for the tests, the measurements of the tests under principal load cas
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简要介绍模型试验研究情况，建立空间板壳有限元模型对该模型桥梁进行理论分析，给出主要试验工况的实测数据，提出设计施工建议。 |
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In this paper, the geologic features of Carlin type gold deposits in Tangxinzhai are expounded, relations of metallogenic with lithologic characters, structure and wall rock alterations are summed up, and its metallogenic conditions and metallogenesis are
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本文结合区域地质背景叙述了塘新寨微细浸染型金矿床地质特征，探讨了成矿与地层岩性、构造、蚀变的关系，并初步探讨其成矿条件与成矿作用。 |
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In this paper, the geological characteristics of talc for Changfeng and Heyuan is introduced. The condition of talc is analysed. It is discussed the genesis of talc.
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介绍了采用单向托辊和阻尼板的方法对上运带式输送机断带下滑和带式输送机逆转进行全线柔性摩擦制动的技术方案、主要结构、原理、理论分析计算及应用情况。 |
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In this paper, the homology of transport proteins of Streptomyces lydicus and other Actionmycetales bacteria is analysed and their evolutional relation is discussed.
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将获得的利迪链霉菌的转运蛋白基因与其他放线菌的转运蛋白基因进行了同源性分析，探讨了基因的进化关系。 |
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In this paper, the implicit enumeration methods for mathematical programming are effectively classified: well-implied and ill-implied enumerations.
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摘要对数学规划中的枚举法进行了有效的分类：良性隐式枚举与病态隐式枚举。 |
