Because of its cost feature and supply condition, garbage incineration industry is natural monopoly.

 
  • 成本性狀和垃圾供給條件決定了垃圾焚燒產(chǎn)業(yè)具有“自然壟斷”特征;
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目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan