The choice of this enclosure material responds, on the one hand, to its role as a solar filter offering at the same time porosity, light entrance and ventilation to the elevator case.
外围护结构材料的选择，一方面，由于孔隙率的控制使其成为太阳滤波器，可以照入一些阳光，照亮入口空间，也有利于梯井内的通风。
Placed at the entrance of commercial space is best can divide pad, filter shoes with sand.
商业空间入口处最好能放置除法垫，过滤鞋子所带之砂粒。
So suggest you at the time of installation of high viscosity pump should choose the appropriate filter to installed in the entrance of the pump.
⤤所以建议大家在安装高粘度泵的时候应该选择合适的过滤器来安装在泵的入口。
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