操作员

例句：

1. 1. The engineer is the operator of the new machine.
   这位工程师是新机器的操作员。
2. 2. The doctor was the operator of the operating room.
   那位医生是手术室的操作员。
3. 3. The pilot was the operator of the plane during the flight.
   飞行员在飞行期间是飞机的操作员。