backacter

常见例句

• Optimization Study and Application of Backacter Mining Technology of Rock Dissolve Deposit Bauxite in Pingguo Mine
  平果岩溶堆积型铝土矿反铲开采工艺的优化与应用
• Keywords rock-dissolve depossit bauxite;backacter mining technology;optimization and application;
  岩溶堆积型铝土矿;反铲开采工艺;优化与应用;
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