Diffusion Barrier Layers
thermal barrier coating layers
barrier-layer cell (= barrier-layer photo cell)
pack upper layers and exploit lower layers
(intestinal) mucosa barrier
3 000 meter barrier race
4H-SiC JBS(junction barrier schottky)
4H-SiC SBD(Schottky-barrier diode)
a product of electron density and barrier width
absorbing sound barrier
acid geochemical barrier
activation energy barrier
active acoustic barrier
Actively controlled noise barrier