When does auxiliary burner of incinerator put into operation? Istart incinerator when it i..

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When does auxiliary burner of incinerator put into operation? Istart incinerator when it is cold IIthe sludge for dealing with is little IIIthe sludge for dealing with is large IVthe water and impurity in sludge are too much Vthe temperature in incinerator is low VIdealing with little solid rubbish

A.I+II+III+V

B.I+II+III+IV

C.I+IV+V+VI

D.I+II+III+VI

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