When there is a flame failure in an automatically fired auxiliary boiler, the ().
Failure of the burner flame in an auxiliary boiler would probably be a result of()
When a rocket is launched, ______ of long streams of flame and smoke can be seen.(近义分月)
In the presence of an open flame or hot surfaces, chlorinated fluorocarbon refrigerants decomposes and from ().
A dazzling white burner flame in the boiler furnace indicates ().
The flame safeguard control system of a large automatic auxiliary boiler will provide fuel shut off in the case of high ().
In the presence of an open flame or hot surfaces, chlorinated fluorocarbon refrigerants decomposes and from ().
In the presence of an open flame or hot surfaces, chlorinated fluorocarbon refrigerants decomposes and from ()
Failure of the burner flame in an auxiliary boiler would probably be a result of()
When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?()