【纺织；造纸】空心壁

抽屉面板有3/4英寸厚，两层结构。装配前各面喷涂完毕，抽屉内有消声材料。

double-side hacksaw blade

straight-side 4-point double-action drawing press

double standard

Double-head counting tablet machine

double-ended grinding machine【机】

double precision exponent part【计】

Lung transplantation (bilateral sequential or en bloc double lung)

double column plano-milling machine