Mugihe cyamakuru makuru manini, haribindi byinshi kandi byinshi-byuzuye kandi byihuta cyane.Muri iki gihe, insinga ya optique ya optique cyangwa umuringa ushingiye kumuringa bigaragara ko urambuye.Kugirango tumenye neza kandi byoroshye gukoresha ihererekanyabubasha, abakoresha ur ...
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