Storage or technological entry that may be used solely for statistical functions. Technical storage or entry which is made use of completely for nameless statistical applications.L?u ý two: Ph?i ??m b?o 2 ?i?m laser xu?t hi?n tr?n v?n trên b? m?t ?o ho?c tuân th? t? s? D:S ?? ??m b?o s? ?o chính xác.V?i s? hi?n di?n c?a các lo?i h? th?ng t? ?