Close-up of biological filter for circulating water treatment system, in a factory farm in North China

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Size: 9504px × 6336px
Photo credit: © YongXin Zhang / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: advanced, aquaculture, biological, biology, china, circulating, close-, economy, environmental, filter, high-quality, industrialization, industry, north, protection, source, system, technology, treatment, water