green space open space

Bench blasting in open pit

blasting in open air

Blasting in open-pit

bud grafting in open air

central open space

City Open Space

Combined transport without transfer in open-pit

concave slope in open pit

continuity of open space

discharge in open channel

District Open Space

District Open Space ， DO

flow in open chnanel

flow survey in open channel

Green Open Space

interior open space

irradiated surface of water system in open channel

landslip in open pit