Back مؤشر الأس الهيدروجيني Arabic Химически индикатори Bulgarian Indicador de pH Catalan Dangosydd pH Welsh PH-indikator Danish Πεχαμετρικός δείκτης Greek PH indicator English Indicador de pH Spanish Happesusindikaator Estonian شناساگر پی‌اچ Persian

PH-Indikator

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