Ships may then be moved to or from tidal waters at certain states of the tide without appreciably altering the level of the water in the basin or wet dock.
Inqanawe ingakwazi ukutyhalwa ukusiwa okanye ukususwa kumaza amakhulu, ngamahlobo ethile amaza, ngahandle kekutshintsha iqondo lwamanzi ezibukwenu okanye edokisini.