- water conservancy history
- 水利: water conservancy
- 史: history
- 中国水利史研究会: society for study of the history of water conservancy in china
- 水利: 1.(利用水力资源) water conservancy 水利设施 water conservancy facilities2.(水利工程) irrigation works; water conservancy project 兴修水利 build irrigation works; 水利调查 water resources investigation; 水利管理机构 water-board; 水利灌溉网 irrigation network; 水利规划 planning for water resources development; 水利化 build water conservancy works on an extensive scale; bring all farmland under irrigation; 水利机械化 hydromechanization; 水利机组 hydro-set; 水利技术 hydrotechnics; 水利经济 water conservancy economy; 水利纠纷 irrigation dispute; 水利土壤改良 hydro-melioration; 水利资源 water resources; hydro-power resources
- 保加利史: history of bulgaria
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