喷灯总成燃油喷嘴
burner assembly fuel nozzle
卧式内燃燃油燃气锅炉
Horizontal Internal-combustion oil-fired (gas) boiler
次级燃油滤清器壳体
secondary fuel filter housing
次级燃油滤清器滤芯
secondary fuel filter element
次级燃油滤清器滤芯的更换
secondary fuel filter element replacement
次级燃油滤清器总成
secondary fuel filter assembly
次级燃油滤清器座
secondary fuel filter base
低燃油油面警报器开关
low fuel level alarm switch