Bingham viscometer - boundary-cutoff
- Bingham viscometer
- bio-assay
- biocenosis
- biochemical industry
- biochemical oxygen demand
- biochemical sewage treatment
- biodegradable organics
- biodegradation
- biogenous elements
- bioleaching
- biological detergent
- biological film
- biological filter
- biological filter treatment
- biological floe
- biological growth
- biological leaching
- biological nitrification
- biological oxygen demand
- biological purification
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