In addition, concrete cushion plays critical bracing function on controlling lateral deformation of the retaining wall, which is similar to the reinforcement concrete bottom plate.
同时，素混凝土垫层对围护墙体变形具有一定的支撑效应，在一定程度上能起到类似结构底板的作用。
The desktop billboard consists of a panel, a top plate, a bottom plate, a bracing plate and a mark board.
提供一种易拆装、可重复使用的桌面告示牌。
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