卧式内燃燃油燃气锅炉
Horizontal Internal-combustion oil-fired (gas) boiler
变速箱油箱油面
transmission tank oil level
下油箱固定螺栓
bottom tank retaining bolt
低燃油油面警报器开关
low fuel level alarm switch
低燃油油面警告灯
low fuel level warning lamp
堵塞的燃油箱管接头
plugged fuel tank connection