A safety distance to cover such imponderables as the accuracy of the instruments used for fixing the ship in her berth, time-lag between the executive order to let go and the anchor reaching the bottom, and so on.
Umgama okhuselekileyo oquka njengenabunzima njengo coselelo lwe zixhobo ezisetyenzelwa ukulungisa inqanawa kwindawo yayo yokulala, ixesha elisilelayo phakathi isebe elilawulayo loluhlu kuyekela ihambe ne ankile ifikelele emazantsi, njalo-njalo.