ZCC

This paper makes good investigation and analyses ZCC's management environment and practical situation of marketing and finds out the company's advantage and disadvantage, market opportunity and threatens.

本文中，笔者试图通过深入调查和分析我国老牌国有硬质合金企业&株洲硬质合金集团有限公司的市场营销环境与市场营销的现状，发现该公司存在的优、劣势以及面临的市场机会和威胁。

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The high frequency switch technology of large power is developed successfully by the perfect control of PWM ( Pulse Width Modulation) and ZCC ( Zero Current Control), ZVC ( Zero Voltage Control) in the unit.

通过PWM（脉宽调制）和ZCC（零电流控制）、ZVC（零电压控制）的完整控制，成功开发应用了大功率高频开关技术。

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In this paper, some problems about IGBT's operation characteristics are discussed. A driving mode called zero voltage commutation and zero current commutation ( ZVC/ ZCC) technique with high efficiency and safety is introduced.

对IGBT的工作特性及存在的问题进行了深入探讨，详细介绍了用于提高大功率IGBT电桥的开关效率和安全性的ZVC／ZCC驱动模式。

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ZVC/ ZCC Driving Mode for IGBT

IGBT的ZVC/ZCC驱动模式

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Conclusion: ZCC could inhibit the remodeling of airway in chronic asthma by way of reducing the precipitation of collagen and Fn, thus help the prevention and treatment of chronic bronchial asthma.

结论：止喘胶囊（补肾健脾法）可能通过减少气道壁胶原和Fn沉积，抑制慢性哮喘的气道重建，有利于对慢性哮喘的治疗和预防。

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Based on the ERP executing of ZCC carbide mixture, the article discussed the process management factors of ERP executing.

以株洲硬质合金集团有限公司混合料ERP项目实施过程管理为基础，探讨ERP系统实施过程管理要素。

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