This article introduces the IC Card Gas Meter Charge system's operation principle including the function, the system construction frame, the hardware architecture, the software flow diagram and so on.

介绍了IC卡煤气表收费系统的工作原理，主要包括其功能、系统结构框图、原理图及其软件流程设计等。

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And the same time developed the construction of data frame for the road traffic accident spot diagram drawing technology and the integration accident reappearance technical.

同时开发设计了交通事故现场图绘制技术与事故再现技术一体化的数据结构框架。

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And the same time developed the construction of data frame for the road traffic accident spot diagram drawing technology and the integration accident reappearance technical.

同时开发设计了交通事故现场图绘制技术与事故再现技术一体化的数据结构框架。

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