求翻译：数值模拟是获得指导物理试验和具体工程实践基本数据的有效方法。数值模拟是获得指导物理试验和具体工程实践基本数据的有效方法。是什么意思？

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Numerical simulation is guided by physical experiments and specific engineering practice effective methods of basic data. Numerical simulation is guided by physical experiments and specific engineering practice effective methods of basic data.

The value simulation is obtains the instruction physical testing and the concrete project practice master data effective method.The value simulation is obtains the instruction physical testing and the concrete project practice master data effective method.

Numerical simulation is to acquire specific engineering practices guide physical testing and effective method of basic data. Numerical simulation is to acquire specific engineering practices guide physical testing and effective method of basic data.

Numerical simulation is to acquire specific engineering practices guide physical testing and effective method of basic data. Numerical simulation is to acquire specific engineering practices guide physical testing and effective method of basic data.