缓冲装置一种减小震动或冲撞力的装置，如一捆绳子或一块木头，用在船或船坞的侧面以承受撞击或摩擦力。
A cushioning device, such as a bundle of rope or a piece of timber, used on the side of a vessel or dock to absorb impact or friction.
埋刮板输送机在垂直提升时，物料受到刮板链条在运动方向的压力，在物料中产生了横方向的侧面压力，形成了物料的内摩擦力。
Buried scraper conveyor in horizontal transmission materials, and scraper chain in the direction of the pressure and material, its weight in the materials produced in the friction.
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