general-aviationCOCA¹⁷⁹⁸⁸⁷ 基本例句 un.专用航空；🌏通用航空；普通航空业；通用航空业 Officials proposed last November to allow general-aviation aircraft to fly the skies below4,000 meters, or about 13,125 feet. 去年十一月份，官员们提议允许民用飞机在4000米13125英尺以下飞行。 yeeyan Often that is because of a lack of general-aviation facilities. 通常的原因是那里还缺少专用航空的设施。 ecocn