风机盘管的送风口与回风口不在同一水平面时(如送风口为上侧送、回风口为上回)，送风口与回风口距离可相对近一些。
Fan coil air outlet and the air return are not at the same level (such as when the outlet for side inlet and outlet for the last time), air inlet and the air return distance can be relatively close.
全尾砂膏体泵送环管试验中，往往要添加一些其它材料来改善膏体充填料浆的输送参数和提高充填体的强度。
In full tailing paste filling slurry pumping looping pipe experiments, some other materials are usually added to improve the transportation parameters and the filling strength.
喷枪与送料管的连接可以旋转，便于操作。
With the spray gun feeding tube connected to the rotation, easy to handle.
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