BCS theory (=Bardeen-Cooper- Schrieffer theory)

Brunauer-Emmett-Teller adsorption theory (= BET adsorption theory)

collision theory hard sphere theory

grey theory and fuzzy theory

hard sphere theory collision theory

idea in the theory philosophic theory

lipoid-sieve theory lipoid-filter theory

Literature Theory Literature Theory

TRIZ theory of inventive problem solving theory

TRIZ(theory of inventive problem solving)theory

alloy-wire drawer

aluminium line drawer

Anterior drawer sign

bathing drawer

bed and drawer

bottom drawer

cement drawer

centre drawer hinge bracket

centre drawer hinge bracket plate