backacter

常见例句

• Optimization Study and Application of Backacter Mining Technology of Rock Dissolve Deposit Bauxite in Pingguo Mine
  平果巖溶堆積型鋁土鑛反鏟開採工藝的優化與應用
• Keywords rock-dissolve depossit bauxite;backacter mining technology;optimization and application;
  巖溶堆積型鋁土鑛;反鏟開採工藝;優化與應用;
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