单项选择题
A.deposition chamber
B.oxidation pool
C.disinfection chamber
D.all chamber
单项选择题 When does auxiliary burner of rotary nozzle incinerator begin to work? （） Ⅰ.hen igniting Ⅱ.he sludge for dealing with is too much Ⅲ.efore stopping incinerator
单项选择题 When the incinerator is stopped, which of the following is wrong?（）
单项选择题 Concerning the incinerator’s operation, which of the following is not correct?（）