Ingabe izibani zasemgwaqweni zelanga zingasebenza ngokujwayelekile ezinsukwini zemvula?
Ukukhanya komgwaqo welanga kanye nesistimu kagesi kuklanyelwe ukumelana namanzi namabhethri okugcina amandla, futhi izinsuku ezithile zemvula kufanele zicatshangelwe ekuklanyeni. Ngakho izibani zasemgwaqweni zelanga zingasebenza ngezinsuku zemvula. Uma lina izinsuku ezimbalwa zilandelana, kuya ngokuthi zingaki izinsuku zemvula ezilandelanayo ...