By screening, select a few main brush goods.
通过筛选，选几款主刷的商品。
The side - and main brush loosen the dirt, from the ground area and the dirt is collected in the waste-bin.
边刷和滚刷疏松地面污垢并将污垢吸集到尘箱中。
According to the classification of the main brush size, as well as pen hair types, materials, shape, and so on to points.
毛笔的分类主要有依尺寸，还有笔毛的种类，原料，形状等等来分。
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