centralization
  集中,中央集權化
  Cen·tral·i·za·tion n.  The act or process of centralizing, or the state of being centralized; the act or process of combining or reducing several parts into a whole; as, the centralization of power in the general government; the centralization of commerce in a city.
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  centralization
       n 1: the act of consolidating power under a central control [syn:
             centralisation] [ant: decentralization]
       2: gathering to a center [syn: centralisation]