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vacuum Vakuum vacuüm vide vuoto Aspirar เครื่องดูดฝุ่น máy hút bụi 真空

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Compounds:

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7	真空	zhēnkōng	vacuum

7	真空	zhēnkōng	máy hút bụi

HSK5000 A1+A2+B1

HSK5000 B2 + C1