【机】 butt welded pipe
right; answer; reply; at; check; compare; couple; mutual; opposite; versus; vs
face to face
【计】 P
【化】 dyad
【医】 Adv.; contra-; corps; ob-; p-; pair; par; para-
【经】 vs
【化】 seam welding
canal; duct; fistula; guarantee; meatus; pipe; tube; wind instrument
【化】 pipe; tube
【医】 canal; canales; canalis; channel; duct; ductus; salpingo-; salpinx
syringo-; tuba; tube; tubi; tubing; tubo-; tubus; vas; vaso-; vessel