【机】 敝砂模法

supprot coated open tubular column

drop-out fuse【电】;flip-open cut-out fuse【电】

open-loop voltage gain

nonextractable phase open tubular column，NPOT柱

Orbital floor open reduction-- silicon sheet implant

open the stomach and aroused the spleen

open-loop stable feedback system【自】

open-hearth furnace