These are marks on the sides of merchant ships to denote the greatest depth to which they may be safely loaded under various conditions, in accordance with the Ministry of Transport regulations.
La ngamaphawu asemacaleni enqanawa zorhwebo ukwehlisa ubunzulu obukhulu ukuze kulayishwe khuselekileyo phantsi kwemeko ezthile, ngokwemiqathango yezothutha.