secchi disk

listen to the pronunciation of secchi disk
İngilizce - Türkçe
(Askeri) seki disk
secchi disc
(Denizbilim) secchi-disk
İngilizce - İngilizce
A disk, divided into black and white quarters, used to gauge water clarity by measuring the depth at which it is no longer visible from the surface
Türkçe - İngilizce
(Denizbilim) secchi disc
secchi disk