The authors give the method to convert manufacturing gas with LPG-air mixture in Shiyan city.
根据十堰市的实际情况，提出液化石油气空混气置换人工煤气的方案。
According to the characterr istics of Anqing city, the author advises to use LPG-air mixture for the main gas supply, and simply discusses on the selection of equipment and technology problems.
通过分析安庆市在实施液化气混空气供气条件的基础上，讨论了相关的实施设备、技术问题等。
Feasibility of using oxygen analyzer or gravitometer for calorific value control of LPGair mixture is studied in the system of mixing LPG and air.
探讨了在液化石油气混空气系统中采用氧分析仪或相对密度仪控制混合气热值的可行性。
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