simulator software program

例句：

1. 1. The simulator is used to simulate the operation of a real machine.
   模拟器用于模拟真实机器的操作。
2. 2. The simulator was designed to help train pilots in emergency situations.
   模拟器被设计用来帮助飞行员在紧急情况下训练。
3. 3. The simulator allowed me to practice my driving skills without putting myself at risk.
   模拟器让我可以在不冒自己风险的情况下练习驾驶技巧。