pneumatically-operated

例句：

1. 1. The car is pneumatically-operated, so it can move quickly and quietly.
   这辆车是气动的，所以它能够快速而安静地移动。
2. 2. The robot has a pneumatically-operated arm that can lift heavy objects.
   这个机器人有一个气动操作的手臂，可以举起重物。
3. 3. The airship is pneumatically-operated, which makes it easy to control.
   这艘飞艇是气动操作的，这使得控制起来很容易。