The gold mine pool leaching process has strict requirements on the dosage of cyanide solution; tô much is of a waste and (36) _____ little can't guarantee the leaching effect. When using CNFREE eco-friendly gold leaching reagent, the requirements can be appropriately relaxed (37) _____ terms of dosage, and the same leaching effect of cyanide can be obtained, which saves cost and reduces environmental pollution. Add a small (38) ____ of leaching material to the ore, agitate it uniformly and (39) _____ it into the pool, then spray the leaching solution containing CNFREE gold environmental leaching solution with the spray system to prevent the leaching rate of the gold mine pool, and greatly (40) _____ the permeability and leaching rate of the gold mine.
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Sinh Học lớp 12
