tandem heli copter

例句：

1. 1. The tandem helicopter was used to transport patients fromthe hospital to the operating room.
   双人座直升飞机被用来将病人从医院运送到手术室。
2. 2. Thetandem heli copter was a popular choice forsightseeing tours in the city.
   双人座直升飞机是这个城市观光旅游的热门选择。
3. 3. The tandem heli copter was equipped withadvanced communication systems to ensure safety during flights.
   双人座直升飞机配备了先进的通信系统，以确保飞行过程中的安全。