| http://www.w3.org/ns/prov#value | - Accordingly, most of the powder that would otherwise circulate in the torus is drawn out of the stream and deposited at such a point as 53, so that the passage of a given amount of air through the device in reverse flow discharges a much smaller quantity of the powdered medicament than is picked up by the same amount of air going through in th right direction.
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