[Level 1] 中文簡介：我國“九天”大型無人機成功首飛，具備運輸和救援多種能力。

China’s new Jiutian unmanned aircraft completed its first flight in Shaanxi. As a large drone developed by China, it can carry heavy loadsand work for many tasks, such as transport, mapping, and rescue. The success shows progress in China’s aviation technology.

Key Words:

• Jiutian：“九天”無人機
  

• aircraft：飛行器
  

• flight：飛行
  

• loads：載荷
  

[Level 2] 中文簡介：“九天”無人機在陜西成功首飛，具有大載重、多用途特點。

TheJiutian unmanned aircraft, designed by AVIC, completed its first flightin Shaanxi. With a 16-ton maximum takeoff weight and strong payload capacity, it can support missions such as mountain logistics, island transport, emergency communication recovery, and surveying work. This successful flight advances China’s drone technology.

Key Words:

• Jiutian：“九天”
• aircraft：無人機
• flight：首飛
• payload capacity：載荷能力
• emergency communication：應急通信
• surveying work：測繪工作

[Level 3] 中文簡介：“九天”大型無人機首飛成功，具備運輸、救援、測繪等多領域應用能力。

Designed by AVIC, the Jiutian large unmanned aircraft completed its maidenflight in Shaanxi’s Pucheng. With a 16-ton takeoff weight, 6-ton payload, 12-hour endurance, and a 7,000-km range, it supports missions in heavy cargo delivery, emergency relief, communication restoration, geographic mapping, mineral exploration, and cultural-heritage surveys.

Key Words:

• maiden flight：首次飛行
• payload：載荷
• endurance：航時
• range：航程
• emergency relief：應急救援
• communication restoration：通信恢復
• geographic mapping：地理測繪
• mineral exploration：礦產普查

[Level 4] 中文簡介：我國大型通用無人機平臺“九天”成功首飛，性能卓越，覆蓋運輸、測繪、救援等多領域任務，為低空經濟注入新動能。

TheJiutian large unmanned aerial platform, developed by China’s First Aircraft Design Institute, achieved its successful initial flightin Pucheng. Featuring a 16-ton maximum takeoff weight, 6-ton modular payload, wide-speed envelope, and short-takeoff capability, it supports multi-domain operations including cargo transport, precision logistics, disaster-relief communication recovery, cultural-heritage surveys, maritime patrol, and wildfire response—signaling a major advancement for China’s low-altitude economy.

Key Words:

• aerial platform：無人機平臺
• modular payload：模塊化載荷
• multi-domain operations：多領域任務
• wide-speed envelope：寬速域
• short-takeoff capability：短距起降能力
• precision logistics：精準物流
• maritime patrol：海巡執法
• wildfire response：森林滅火
• cultural-heritage surveys：文物勘測
• low-altitude economy：低空經濟

Multiple-Choice Questions (5 items)

1. Where did the Jiutian UAV complete its first flight?
A. Inner Mongolia
B. Pucheng, Shaanxi
C. Jiuquan, Gansu
D. Qingdao, Shandong

2. What is the maximum takeoff weight of the Jiutian UAV?
A. 6 tons
B. 10 tons
C. 16 tons
D. 25 tons

3. Which of the following is NOT a function of the Jiutian UAV?
A. Heavy cargo delivery
B. Wildfire response
C. Space tourism
D. Geographic mapping

4. What feature allows the UAV to adapt to different mission needs?
A. Solar-powered wings
B. Modular payload system
C. Transparent fuselage
D. Underwater operation

5. The UAV’s successful first flight represents progress in what field?
A. High-speed rail
B. Maritime navigation
C. China’s drone technology and low-altitude economy
D. Space colonization