Asked | Open questions | Answered Points Date Pair Term / Answer given Level Status Gloss 4 Jan 13 '04 esl>eng minado mining o mined easy closed no 4 Jan 13 '04 esl>eng perforador del tipo martillo neumático pneumatic hammer-type drill easy closed no 4 May 17 '03 esl>eng concentrado de cobre copper concentrate pro closed ok Asked | Open questions | Answered