Assertion: grained powder | /r/HasProperty | dusted in horizontal reel
Facets:
value: for about half an hour
type: TEMPORAL
Source sentences:
text: The larger grained powders are dusted for about half an hour in a horizontal reel, with closed ends, the charge being from 250 to 300 It); one end of the reel is made to lower for the purpose of unloading.