good dust cleaning
除尘效果好
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The invention has good cleaning effect on cleaning the dust at the included Angle of the ground and the wall as well as the dead Angle of the bend Angle of stairs and the like.
本发明对于地面和墙壁夹角，以及楼梯等弯角处死角里的灰尘有很好的清理效果。
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