The air reservoirs must have () fitted to prevent rupture in the event of fire.
A、high pressure alarm
B、fire alarm
C、extinguishers
D、fusible plugs
A、high pressure alarm
B、fire alarm
C、extinguishers
D、fusible plugs
A、an auxiliary reservoir B、a controlling
A、
A、A.Dissipate heat B、B.Trap foreign matter C、C.Separate
A、A.Dissipate heat B、B.Trap foreign matter C、C.Separate
A、A.