I have no idea what you mean either.
Dripping is putting a drip tip on an atomizer on a sealed manual battery and dripping liquid into the atomizer a couple of drops at a time to vape. Useful for trying new juices and vaping occasional or thick juices at home.
Tanks are many things
Tank atomizer + plastic tanks like 510-T and Ego-T - some like em and some do not and switch to cartomizers. A newer variation Ego-C has different tanks and atomizers. In any case, many switch to cartomizers which are what most prefer for everyday vaping.
Tank mod with CE2 carto guts in it - used to be popular on big batteries but now carto tanks are more popular on big models for people who want/need a large amount of juice between fillings
Carto tank mod - uses a normal cartomizer, prepunched or slotted in the sidewall, down the middle of a clear tank, used on big batteries