Assertion: dredge | /r/AtLocation | operation
Facets:
Source sentences:
text: Much larger dredges, handling 7,000 cubic yards or more per diem, will soon be in operation in California, and the cost on these may be less.
text: This dredge is equipped with a secondary dredge system that vacuums the concentrates from the sluice box while the dredge is in operation.