etops meaning in Chinese

双发动机延程飞行

Airlines are being requested to consider whether additional swm chart would be required from wafs for flight operations e . g
天文台要求航空公司考虑在亚太地区飞行运作如etops是否需要额外的wafs swm图。
In addition , the new low level significant weather charts for the middle east asia area are included in flight document for etops flights to the middle east
此外，一张新的亚洲及中东的低空重要天气预报图也包括在飞往中东的etops航机的飞行文件内。