Irin alagbara, irin ni kukuru fun ipata acid, irin, air, nya, omi ati awọn miiran alailagbara alabọde tabi alagbara, irin ni a npe ni alagbara, irin;Ati kemikali ipata resistance alabọde (acid, alkali, iyo ati awọn miiran kemikali etching) ipata ti irin ti a npe ni irin acid.Awọn mẹta akọkọ f...
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