If there is a bulk mixing of the layers of gas in the tube by mechanical stirring or because of a density gradient, mass transfer occurs primarily by the mechanism of forced or natural convection.
如果是受到机械式的搅拌或者是密度梯度发生了变化而使得管中有大量的分层的气体，那么传递就主要通过强制对流或自然对流而发生。
On the Mechanical Efficiency of Deep, Tropical Convection.
论深热带对流的机械有效性。
This confirms the idea that the mechanical waves generated from the convection zone are not very effective in heating the chromosphere and corona.
这就证实了一些人认为的对流层机械波并不是一个对色球和日冕的有效加热机制的说法。
This confirms the idea that the mechanical waves generated from the convection zone are not very effective in heating the chromosphere and corona.
这就证实了一些人认为的对流层机械波并不是一个对色球和日冕的有效加热机制的说法。
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