There are plenty of things to do with old clothes that aren’t wearable any more, such as turn them into dusters or a quilt.
有许多方法来处理哪些不能再穿的旧衣服 ，例如将它们做成抹布或者被套。
It also gives description on the working principles of dusters of various types.
阐述各类型除尘器的工作原理。
Brooms, brushes, mops and feather dusters, hand-operated mechanical floor sweepers, not motorized, of other materials.
其他材料制帚，刷，拖把及毛掸(包括其他材料制非机动的手工操作地板清扫器等)。
Brooms, brushes, mops and feather dusters, hand-operated mechanical floor sweepers, not motorized, of other animal or vegetable materials.
其他动植物材料制帚，刷，拖把等(包括动植物材料制非机动的手工操作地板清扫器、毛掸)。
The defects of existing granular bed dusters were analyzed and a new granular bed duster with the merits of fixed bed and moving bed was created.
分析了现有颗粒层除尘器的缺点，并提出了一种能集固定床和移动床的优点于一身的新型颗粒层除尘器。
The development of a computer automatic measure system with a five - hold - probe as main instrument to measure flow fields in dusters is introduced in this paper.
介绍了以五孔球形探针为主的除尘器流场自动检测系统的研制过程。
The development of a computer automatic measure system with a five - hold - probe as main instrument to measure flow fields in dusters is introduced in this paper.
介绍了以五孔球形探针为主的除尘器流场自动检测系统的研制过程。
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