Boleng bo phahameng ba Abbe, lense e hloekileng le e hlakileng
Transmissivity e phahame haholo hore e ka bonoa ka ho hlaka joalo ka ha ho na lense.
Lihlahisoa tse ncha tsa moralo, tse tšesaane ebile li tšesaane
Ho hanyetsa ho hoholo
E bonolo ho mebala e fesheneng
Matla a RX a teng.
Psaaed the resistance resistance test of FDA Drop test test.