双辊链式联轴节

Biotar lens【光】;double Gauss lens【光】

anti-dsDNA antibody, anti-double-stranded DNA antibody

Double-head counting tablet machine

double-ended grinding machine【机】

Automatical Double Pure Water Distillatory

double precision exponent part【计】

Lung transplantation (bilateral sequential or en bloc double lung)

double column plano-milling machine