黑体式光电池

black

Black Cohosh P.E

black-and-white

black heel

Medicago lupulina L.; yellow trefoil; black medick; hop clover

Thunbergia alata Bojer;black-eyed susan;black-eyed clockvine

Robinia pseudoaceacia L.;black acacia;false acacia;black locust;yellow locust

black nickel (electro)plating