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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According to this industrial situation, a computer control calibration system with gas flow standard device by the master meter method is researched and designed.

本文针对这样的工业现状，研制了一种标准表法气体流量标准装置计算机测控系统。

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These components are installed between the customer supplied regulation and metering station and the gas fuel flow meter installed just prior to the fuel gas module.

这些部件安装于用户提供的调压计量站和安装在燃气组件前的气体燃料流量计之间。

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