Idan na'urar hakowa tana ci gaba da aiki kuma zurfin yana a halin yanzu 206.4
Amsar ita ce: Lokacin da ake buƙata don rig ɗin don isa zurfin 206.4 shine kwanaki 5.4.
Idan dredger yana ci gaba da aiki kuma zurfinsa shine 206.4 m, tsawon wane lokaci zai ɗauki dredger don isa wannan zurfin? Shin hakan ya danganta ne da gudun mashin din da irin dutse ko kasa da injin din ke bi.
Gabaɗaya, zurfin tono, zai ɗauki tsayin daka don isa zurfin da ake buƙata.
