Asked | Open questions | Answered Points Date Pair Term / Answer given Level Status Gloss 4 Feb 6 '06 eng>esl spillback valve válvula que provee fluido de retorno pro closed ok - Jan 19 '06 eng>esl wireline providers proveedores de conexión por cable pro closed ok - Nov 19 '04 eng>esl CEM continuous emission monitoring pro closed ok Asked | Open questions | Answered