The wear of piercing punch is one of main die lose efficacy.
冲孔凸模磨损是模具失效的主要形式之一。
The production process and its features of piercing plug by precision hot-die-forging are detailed.
本文介绍了精密热模锻穿孔顶头的生产工艺及工艺特点。
And others do not share the possibility of piercing the skin of items such as toothbrushes, razors and so on.
不和他人共用有可能刺破皮肤的物品，如牙刷、剃须刀等。
EPG is an electrical physiological technology which is used to study the probing and feeding behavior of piercing sucking insects.
刺吸电波图(EPG)是用于研究刺吸式口器昆虫取食的电生理技术。
On the analysis of the forming process of the reinforcing plate, introduced the forming process and the 3d design of piercing die.
分析上支座加强板的成形工艺，并着重介绍成形工艺中的冲孔模的三维设计。
The causes on wrinkle occurrence on the working cone of piercing plug are analysed in detail, and the measures to prevent wrinkle occurrence are put forward.
详细地分析了穿孔顶头工作锥起皱的原因，提出了抑制顶头工作锥起皱的工艺措施。
The causes producing wall thickness difference in a same pierced shell are expounded and the influences of piercing, rolling and mandrel drawing on the difference are studied.
阐述了穿孔毛管产生同管壁厚差的原因，研究了穿孔和轧管工艺对钢管同管壁厚差的影响。
Characteristics of end board of heat exchanger of air conditioner have been introduced with technology analysis of several products and introduction of structure features of piercing die.
介绍了空调机换热器端板的结构特点，对其几种产品进行了工艺分析，在此基础上设计了端板冲孔模。
This review focuses on various aspects of piercing plug surface oxide film, including formation, compose, property, effect, transformation in the piercing course and the influence of plug's life.
概述了穿孔顶头表面氧化膜的形成、结构、性质、作用，在穿孔过程中的变化及其对顶头使用寿命的影响。
The author proposes adopting the following means on company law to regulate illicit associated transactions: introduce abroad "Principle of Piercing the Corporate Veil "and "Deep Rock Doctrine ";
作者建议采用下列公司法上的手段来规制非正当关联交易：引进国外的“刺破公司面纱原则”和“深石原则”；
The second section focuses on the application of "piercing the corporate veil" principle to deal with legal issues associated with bankruptcy legal basis.
第二部分主要分析适用“揭开公司面纱”原则规制关联企业破产的必要性与可行性。
The second section focuses on the application of "piercing the corporate veil" principle to deal with legal issues associated with bankruptcy legal basis.
第二部分主要分析适用“揭开公司面纱”原则规制关联企业破产的必要性与可行性。
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