对流效应 液体或气体中较热的部分和较冷的部分通过循环流动使温度趋于均匀。 点评：不怕别人冰冷,只怕自己不热
介绍了一种研究路堤碎石层自然对流效应的实验方法。
An experimental technique to study the cooling effect of natural convection in the embankment ballast is introduced.
研究结果表明，块石护坡结构具有隔热保温和空气自然对流效应。
It was shown that the effect of thermal insulation and natural convection could be occurred in crushed rock layers of revetment.
数值求解中，对凝固过程与熔化过程加以分别考虑，考虑了诸如蕊芯的影响及自然对流效应等因素，所得结果具有实用价值。
Solidification and melting process are studied separately with different considerations such as the effects of core and natural convection. Valuable results were gotten.
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