环保、冶金及建材行业余热利用中的热交换器，常因管内污垢系数上升、换热面粘附粉尘而失效。
Heat exchanger in the heat reuse of environmental protection, metallurgy and construction materials often loses effectiveness because of the increased dirt coefficient.
粘附滑移流动是一种密集颗粒的急跳式的运动，在壁面处，颗粒的速度稍低于呈杆状的中心的速度。
Stick-slip flow is a jerky movement of compacted grains with velocity of particles at the walls slightly lower than in the rod like core.
粘附滑移流动是一种密集颗粒的急跳式的运动，在壁面处，颗粒的速度稍低于呈杆状的中心的速度。
Stick-slip flow is a jerky movement of compacted grains with velocity of particles at the walls slightly lower than in the rod like core.
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