本文对双面加热的圆弧形窄缝通道内重水的自然对流进行了模化试验和数值模拟。
We studied the natural convection in narrow double-side heating arc by mock-up tests and numerical simulation in this thesis.
双面辐射加热，辐射率90%以上，温度均匀性好。
Both sides radiant heating, radiation rate is more than 90%, with better temperature uniformity.
介绍了自行车车圈双面双缝高速次级整流缝焊新工艺、新设备，并对其加热特点、技术要点及焊接参数等问题进行了探讨。
The heating and other technical characteristics as well as procedure parameters are introduced in this paper for bicycle wheel - tyre double seam high speed welding.
介绍了自行车车圈双面双缝高速次级整流缝焊新工艺、新设备，并对其加热特点、技术要点及焊接参数等问题进行了探讨。
The heating and other technical characteristics as well as procedure parameters are introduced in this paper for bicycle wheel - tyre double seam high speed welding.
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