barrier-layer cell (= barrier-layer photo cell)
deposit coarse sediment and release fine sediment
retaining course sediment and discharging fine sediment by channel storage
(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