ROAD VEHICLES. SELF SUSTAINED HEATING SYSTEMS INSTALLED ON COMMERCIAL VEHICULES OVER 3,5 TONNES GVW(R). PART 1 : GENERAL SAFETY REQUIREMENTS.是什么意思_ROAD VEHICLES. SELF SUSTAINED HEATING SYSTEMS INSTALLED ON COMMERCIAL VEHICULES OVER 3,5 TONNES GVW(R). PART 1 : GENERAL SAFETY REQUIREMENTS.在线翻译_英语_读音_用法_例句