【电】 line-focus tube
circuitry; line; route
【计】 circuit; L
focalize; focus; focusing
【计】 focussing
【化】 focusing
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