这样推杆与炉体前壁间的摩擦力更小，推杆在通过炉体前壁时非常灵活。
Therefore, friction between the push rod and the furnace body front wall is less and the push rod is very flexible when running through the furnace body front wall.
钢罐和岩洞壁间的距离很小并灌注混凝土，这样钢罐壁不承受任何应力而由岩石和混凝土承受。
The space between the rock walls and the steel tank was narrowed and filled with concrete so that all the stresses would be absorbed by the concrete and rock as opposed to the steel tank shell.
本文从力矩的角度出发，得出了要实现物料的滚落状态，可以提高物料与窑壁间的摩擦系数，并提出了具体方法。
It was indicated that enhancing the friction between the material and the rotary kiln wall is easy to carry out the rolling motion from the aspect of force moment.
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