Assertion: gunpowder | /r/HasProperty | milled
Facets:
value: the longest time
type: TEMPORAL
Source sentences:
text: It is usually considered that j there is a limit of time beyond which no advantage is gained by continuing the "milling" or incorporating process; but it is certain that nothing that can be done to the powder afterwards will add to its strength, although we may modify its explosiveness, and that the very best powders, especially for small-arms, are milled the longest time.