When does auxiliary burner of rotary nozzle incinerator begin to work? Iwhen igniting IIth
When does auxiliary burner of rotary nozzle incinerator begin to work? Iwhen igniting IIthe sludge for dealing with is too much IIIbefore stopping incinerator
A.I+II
B.I+III
C.II+III
D.I+II+III
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