单词：physical system
physical system的用法和样例：
例句
- An instrument used to monitor the operation or condition of an engine, a furnace, an electrical network, a reservoir, or another physical system; a meter or gauge.指示器，记录器监控发动机、熔炉、电网、水库或其它系统运作状况的仪器; 指示板或仪表盘
- Clearly, a refrigerator, which is a physical system must obey not only the first law(energy conservation) but the second law of thermodynamics as well.很明显，冷冻机是一种物理系统，因此它不仅必须遵从第一定律(能量定恒), 也必须遵从热力学的第二定律。
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