bar code， bar code reader

bar machine ice bar freezer

bar to bar insulation

bar to bar resistance

bar-to-bar test

bar-to-bar voltage

bar-to-bar voltage peak

five-bar linkages similar to four-bar linkages

Achilles' heel

Achilles’ heel

Adopt the heel blood

angle heel

angle of heel

angle of heel in turn

Anodal heel effect

at heel

automatic heel seat massaging machine

bead heel

black heel nylon stockings