This text studies how to let out and control the coal gas of a district, and has designed a coal gas warning system of controlling.

本文就是学习如何对一个小区的煤气泄漏进行监控，并设计了一个监控四个单元的煤气报警系统。

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Using macroeconomic leading index, synchronous index and lag index for reference, set up the economy early warning index system of gas field development.

借助宏观经济预警分析的领先指标、同步指标和滞后指标的方法，建立气田开发经济预警指标体系。

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The system gives a strong technical support for the early warning and controlling of gas disaster and provides a reference for the prevention of gas accidents in coal enterprises.

系统为瓦斯灾害的预警和预控给出了强有力的技术支持，为煤炭企业瓦斯事故的预防提供借鉴。

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