Construction of inland river channel still must have one-time extensive investment, fragmentary investment often disables or wasteful, have the impartible sex of investment.

 
  • 内河航道建设还必须进行一次性大规模投资,零星的投资往往无效或者不经济,具有投资的不可分性。
今日热词
目录 附录 查词历史