For the three-phase flow gravity heat pipe without built-in pipe, the equivalent convective heat transfer coefficient increases as the heating power increases.

对于无内置管的三相流重力热管，随着加热功率的增加，等效对流传热系数增大。

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In this paper, the three-phase flow heat transfer enhancement technique is applied to closed gravity heat pipe and a set of three-phase flow gravity heat pipe system is set up.

本文将三相流强化传热技术应用于重力热管，构建了三相流闭式重力热管系统。

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It uses so-called passive systems for cooling, such as the gravity flow of water and natural circulation based on thermodynamics.

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Such an innovation has the potential to defy gravity and flow uphill to rich countries.

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