ืคื•ืจื˜ืœ ืœืงื•ื—ื•ืช

ืžื—ื‘ืจื™ื ืื•ืชืš ืœืงื•ืžื‘ื•ืงืก

ื›ืืŸ ืชื•ื›ืœื• ืœืœืžื•ื“ ืื™ืš ืœื”ื˜ืžื™ืข ื‘ื”ืฆืœื—ื” ืืช ื”ืžืขืจื›ืช ื•ืœื™ื™ืฉื ืืช ืฉื™ื˜ื•ืช ื”ืขื‘ื•ื“ื” ื”ืžื•ืžืœืฆื•ืช ืฉืœื ื•.

ืœื ืžืฆืืชื ืืช ืžื” ืฉื—ื™ืคืฉืชื? ืฆื•ื•ืช ื”ืชืžื™ื›ื” ืฉืœื ื• ื›ืืŸ ืœืจืฉื•ืชื›ื

elements of the system