The revised text makes it clear that the aircraft can be one adapted for specialized use, i.e. air ambulance, or may a regular public transport aircraft where the operator approves the carriage.

• 修改后的内容明确了此类航空器可以是那些为特殊用途改装的飞机，如飞行医院，或是经运营人同意承运的执行定期航班的公共运输飞机。