英文關鍵字
aerial
dam
machinery
indiana
industry
nature
greenery
riverbank
waterfall
daytime
infrastructure
conservation
operation
environment
stability
motion
design
downstream
upstream
spillway
ecosystem
technology
hydropower
hydroelectric
英文關鍵字
aerial
dam
machinery
indiana
industry
nature
greenery
riverbank
waterfall
daytime
infrastructure
conservation
operation
environment
stability
motion
design
downstream
upstream
spillway
ecosystem
technology
hydropower
hydroelectric