差出人
類似のロイヤリティフリーの画像
Industrial water treatment, recirculating sump with cleaning filters, top view, ecosystem and healthy environment concepts
Aerial view of modern water cleaning facility at urban wastewater treatment plant. Purification process of removing undesirable chemicals, suspended solids and gases from contaminated liquid.
Aerial top view of wastewater treatment plant, filtration of dirty or sewage water.
Aerial drone view on modern sewage treatment plant
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