中英文对照资料外文翻译文献
Thevacuumclea
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Clea
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ce，thegreaterthegreaterability，aspiratio
．Avacuumclea
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lyreferredtoasavacuumisadevicethatusesa
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ddirtusuallyfromfloorsThedirtiscollectedbyeitheradustbagoracyclo
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Tech
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Avacuumssuctio
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pushestheairthroughthecarpeta
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thatvacuumi
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kill100ofyou
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d96ofadultfleasAr