?折缘机 flange press
?凸缘阀 flange valve
?卷边腋板,凸缘腋板 flanged bracket
?折边焊接 flanged edge weld
?折缘机 flanger (or flanging) machine
?折缘机 flanging machine
?可折性 flanging quality
?可折性材料 flanging quality material
?折缘试验 flanging test
?齿腹 flank
?飞转速 flank speed
?翼门 flap door
?凸缘阀 flange valve
?卷边腋板,凸缘腋板 flanged bracket
?折边焊接 flanged edge weld
?折缘机 flanger (or flanging) machine
?折缘机 flanging machine
?可折性 flanging quality
?可折性材料 flanging quality material
?折缘试验 flanging test
?齿腹 flank
?飞转速 flank speed
?翼门 flap door
?舌阀 flap valve
?副翼 flapped foil
?襟翼舵 flapped rudder
?挡叶 flapper
?火焰,舷缘外倾 flare
?火焰(救生) flare-up light
?舷缘外倾 flaring
?扩口试验 flaring test
?引火点,闪点 flash (or flashing) point
?闪光信号 flash (or flashing) signal
?回闪(火焰) flash back
?闪电对头焊接,闪电对头熔接 flash butt welding
?手电筒,闪光灯 flash light
?闪光扭力计 flash light torsion meter
?闪点试验器 flash tester
?闪光信号 flashing (or flash) signal
?闪光标志 flashing beacon
?大型船舶闪光灯 flashing light for huge vessel
?装载危险品船闪光灯 flashing light for vessel carrying dangerous cargo
?舱内甲板 flat
?扁条 flat bar
?平底 flat bottom
?平底船 flat bottom boat
?平底艏 flat bow
?扁凿 flat chisel
?平头槽螺栓 flat head grooved bolt
?平铁,扁铁 flat iron
?平板龙骨 flat plate keel
?平焊 flat position downhand welding
?平纵缘 flat seam