A()isaboilerwherethewater／steamsidegetsheatinputbothfromthemainenginesexhaustgasandfromanoilfiredburnersupplementingtheheatinputtoproducetherequiredsteam。 A、fire-tubeboilerB、auxiliaryboilerC、water-tubeboilerD、compositeboiler

A()isaboilerwherethewater／steamsidegetsheatinputbothfromthemainenginesexhaustgasandfromanoilfiredburnersupplementingtheheatinputtoproducetherequiredsteam。

A、fire-tubeboiler

B、auxiliaryboiler