virtual system的用法和样例：
例句
- If the universe were a virtual reality, its creation at the big bang would no longer be paradoxical, as every virtual system must be booted up.
如果世界是虚拟的，它的出现在大爆炸理论中就不会自相矛盾，因为每个虚拟系统都会被输入。 - The 4th Runge-Kutta method is adopted to solve the time history of the ship motions in waves to supply the necessary motion data to the simulation system.
三是在此虚拟系统中，除了船舶运动的逼真性外，并呈现范围内的三维波浪模拟真实性。
