политехнический
polytechnicus [a, um];
корка
crusta [ae, f]
растворимый
(dis)solubilis [e];
ad inertiam pessum dari;
deorsum ferri;
descendere [o, ndi, nsum];
succumbere [o, bui, -] (victima ferro succumbens);
occumbere;
se demittere [o, misi, missum];
subsidere [eo, sedi, sessum];