Assertion: dredge | /r/HasProperty | important
Facets:
value: on this marine research vessel
type: LOCATION
value: always
type: DEGREE
Source sentences:
text: Where a 2" gold dredge can be expected to move about 1/2 yard per hour* of gravel and a 2.5" dredge up to a yard an hour*, a 3" dredge can be expected to process up to 1.5 - 2 yards of gold bearing gravel per hour*. Portability is always important
text: Dredges were an important research tool on this marine research vessel