Developed a high-powder,efficient and practical air powder vacuum cleaner after studing its working principle in order to suck up air powder,the vacuum cleaner is vevy practical.
通过对吸尘器工作原理的学习,研究出一种大功率高效实用的空中粉尘吸尘器,用来吸掉空中的粉尘,这种吸尘器实用性很强。
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