psilomelane psin diode psophometer psophometer noise psophometric electromotive force psophometric voltage p sweep psychoacoustics psychological acoustics psychozoic era psychrometer psyllaic acid ptomaine ptostic design PTP control p-type alloy p-type conductivity p-type impurity p-type semiconductor public |
psilomelane минер. псиломелан Търсената дума е намерена |