dB
tanım: dB (décibel) dB, decibel, unit of measurement for gauging the intensity of sound

DBO
tanım: DBO (demande biochimique en oxygène) biochemical requirement of oxygen

DBOs
tanım: DBO DBO (demande biochimique en oxygène) biochemical requirement of oxygen

dBs
tanım: dB dB (décibel) dB, decibel, unit of measurement for gauging the intensity of sound