ROAD VEHICLES. SELF SUSTAINED HEATING SYSTEMS INSTALLED ON COMMERCIAL VEHICLES OVER 3,5 TONNES GVW(R). PART 3 : SPECIFIC SAFETY REQUIREMENTS OF LIQUID FUEL OPERATED HEATING SYSTEMS.是什么意思_ROAD VEHICLES. SELF SUSTAINED HEATING SYSTEMS INSTALLED ON COMMERCIAL VEHICLES OVER 3,5 TONNES GVW(R). PART 3 : SPECIFIC SAFETY REQUIREMENTS OF LIQUID FUEL OPERATED HEATING SYSTEMS.在线翻译_英语_读音_用法_例句