The allowable shut-off time of fast shut-off valve is calculated by inferred formula and selection way of fast shut-off valve in the gas supply system of gas burning boiler is summarised.
通过推导公式计算快速切断阀的允许切断时间，并总结燃气锅炉供气系统中快速切断阀的选择方法。
The allowable shut-off time of fast shut-off valve is calculated by inferred formula and selection way of fast shut-off valve in the gas supply system of gas burning boiler is summarised.
通过推导公式计算快速切断阀的允许切断时间，并总结燃气锅炉供气系统中快速切断阀的选择方法。
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