说明：  电梯运行模拟系统的说明部分，非常详细！ 电梯运行模拟系统的说明部分，非常详细！ 电梯运行模拟系统的说明部分，非常详细！
(Elevator operation simulation system of the narrative part, very detailed! Elevator operation simulation system of the narrative part, very detailed! Elevator operation simulation system of the narrative part, very detailed!)