By analyzing the process of RH vacuum degassing, the physical and mathematical models that are suitable for simulating the refining process have been developed.

对RH真空脱气过程进行解析，建立了适合于RH真空脱气过程的物理模型及数学模型。

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The characteristics of dew condensation in the inner wall and their influence factors were analyzed based on the establishment of physical and mathematical models.

本文进一步研究了舱内通风对壁面结露特性的影响，建立了合理的物理模型和数学模型。

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The physical and mathematical models are set up based on the comprehensive performance of the infrared system and the radiation of the background where the target located.

本文论述了红外系统综合性能的数理模型和目标所处背景的背景辐射模型。

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True, we have mathematical models that approximate the behavior of many physical systems, and in some cases (like quantum mechanics) it does so with extremely high precision.

FORBES: Software Is Just Math. Really.