payload
noun [ C ] uk/ˈpeɪ.ləʊd/ us/ˈpeɪ.loʊd/
（运输工具的）净载重量，有用载重量；（导弹的）有效载荷，有效负荷
the amount of goods or people that a vehicle, such as a truck or aircraft, can carry
Synonyms: cargoconsignmentdelivery (OF PACKAGE ETC.)freight shipment
See also: boatloadload nountruckload
火箭携带的爆炸物
the explosive that a missile carries
飞船携带的设备
the equipment carried in a spacecraft