In other words it is necessary to have ships in which all the holds can be used when carrying light cargoes, but only alternate holds when carrying heavy cargoes.
Ngamanye amazwi kubalulekile ukuba neenqanawa ezinemiphakathi ekulayishwa kuzoimpahla enokusetyenziswa xa kuthwelwe umthwalo okhaphu-khaphu kodwa eminye imiphakathi xa zithwele umthwalo onzima