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Detection object: a natural gas station in Jinxiu, Guangxi.
Fault type: serious leakage at valve interface.
Detection: The leakage concentration at this point is 2700ppm.m, and the leakage situation is serious. However, the station is located outdoors, and the monitoring system in the station can't sense the leakage situation in time due to the influence of wind direction, resulting in an increasingly serious trend of leakage, so it is recommended to deal with it in time.
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