simulated clock simulation clock

例句：

1. 1. The scientist simulated the experiment to test its effectiveness.
   科学家模拟实验以测试其有效性。
2. 2. The teacher simulated a classroom environment for the students to practice their skills.
   老师为学生模拟了一个教室环境，以练习他们的技能。
3. 3. The engineer simulated the system's behavior to ensure it works as expected.
   工程师模拟系统的行为，以确保它按预期工作。