The paper establishes the mathematic model to explain the principle that the multi-tier windows can preserve more heat than the mono-tier one with the help of conducting heat theory in physics.
文章借助物理学热传导理论，建立数学模型解释多层窗户比单层窗户保暖的原理，探讨在有限的建筑材料规定下保温效果最佳时双层玻璃之间的距离与厚度之间的数量比。
The detonation reliability of different model of nonel tube immersed in heat conducting oil and diesel oil have been studied in this paper.
文章研究了不同型号的塑料导爆管在导热油和柴油中浸泡后传爆可靠性的变化。
Real computing case using blocky structure for model-building in rather complicated geologic structure and conducting ray-tracing by iteration is given in the paper.
文中给出了在十分复杂的地质结构中应用块状结构方法建模并用迭代追踪法进行射线追踪的计算实例。
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