河川の堆積土砂を取り除く浚渫工事
Palabras clave
construction site,
stream,
river,
river,
japan,
breakwater,
reinforcement,
power shovel,
shore,
heavy equipment,
disaster,
flooding,
nature,
civil engineering,
water damage,
cloudburst,
natural disaster,
typhoon,
levee,
bank,
dig,
dig,
torrent