beneficial
use
reasonably beneficial use有合理實益用途;有合理實益用處
beneficial use of waters水域的實益用途
economically beneficial use對經濟上的有益利用
reservoir scheduling for beneficial use水庫興利調度
Dedicated beneficial use site有效利用場
scheduling beneficial use興利調度
beneficial use detail有益利用
beneficial use of water水的有效利用
beneficial l use實益用途