• 该种的正模和副模标本存放于北京师范大学鸟类标本馆。

    The holotype and paratype specimens are deposited in the Bird Museum of Beijing Normal University.

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  • 黄壁庄水库副坝防渗心墙加固工程所需高性能混凝土,要求和易性好、早期强度低、后期强度高、抗渗性能好、低弹模和高抗拉强度。

    The high performance concrete for core wall of earth dam must be good workability, low early strength, high final strength, high seepage resistance, low elasticity modulus and high tensile strength.

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  • 对型材剪切的传统工艺进行了改进,采用一副剪切模,介绍了该模具的结构特点及工作过程。

    Improved the traditional process of the section material cutting, designed a cutting die. Introduced the structure characteristics and working process of the die.

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  • 通过对插座连接焊片结构特点的分析,确定该冲压件的排样方案,设计了一副级进模。介绍了主要工作零件及模具总装结构设计。

    Through analysis of structure of the socket weld connection pieces, determined the layout project, designed a progressive die. Introduced the design points of main parts and die structure.

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  • 介绍了一副典型的普通触指冲落模的设计分析和模具结构。

    The design analysis and die structure of typical common punching die of button contact are introduced.

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  • 针对批量小、材料薄的小型产品,考虑到尽量低的模具成本,设计出一副简单的级进冲裁模。

    Aimed at small products with small batch and thin material, considering to lower die costs, a pair of simple progressive punching die is designed.

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  • 分析了车厢侧板零件通风窗冲压加工的工艺特点,设计了一副针对该零件加工的切口拉伸复合模。

    Analyzed press technology characteristics of vent-windows of the car side board, designed a lancing-drawing compound die.

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  • 摘要:通过对塑料洗衣机把手工艺的分析,设计了一副一模两腔的注塑模具。

    Abstract: Designed a one-mode two-cavity injection mold through the analysis of the handle of washing machine.

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  • 该模具是一副典型的多工位级进模,包括了冲孔、弯曲、落料等工艺,共用了九个工位完成了全部冲压工艺,模具使用简捷方便。

    The die is a typical multi-staged progressive die. It includes punching hole, bending, blanking and so on. It USES nine processes to finish the whole process. The die is operated easily.

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  • 该模具是一副典型的多工位级进模,包括了冲孔、弯曲、落料等工艺,共用了九个工位完成了全部冲压工艺,模具使用简捷方便。

    The die is a typical multi-staged progressive die. It includes punching hole, bending, blanking and so on. It USES nine processes to finish the whole process. The die is operated easily.

    youdao

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