Ketane e tsamaisoang ho tsamaisa hopper ho phahamisa kapele ho tšela lintho tse bonahalang.Haholo-holo bakeng sa tšebeliso e le 'ngoe ea thepa e kholo le lisebelisoa tse kholo tsa viscosity tse kang likhoho, lijo tsa leoatle le mapheo a likhoho, joalo-joalo.