?平藏开关    flush switch

?嵌式开关    flush switch

?低压型蒸馏设备    flush type distilling plant

?冲洗阀    flush valve

?平焊接    flush weld

?冲洗    flushing

?波形舱壁    fluted bulkhead

?颤动回声    flutter echo

?石棉垫单面潜弧焊    flux asbesto backing welding (F.A.B.)

?焊药石棉背衬法    flux asbestos backing method (FAB)

?焊药铜板背衬法    flux copper backing method (FCB)

?铜板垫单面潜弧焊    flux copper backing welding (F.C.B.)

?含焊剂芯焊线,复合焊线    flux cored (or combined) wire

?助熔剂切割    flux injection cutting

?飞轮    fly wheel

?飞轮泵    fly wheel pump

?飞船    flying boat

?艏帆斜桅    flying boom

?望台    flying bridge

?望台甲板    flying bridge deck

?艏三角帆    flying jib

?艏斜杆    flying jib boom

?通路船桥    flying passage

?飞行甲板    flying-off deck

?飞轮    flywheel

?飞轮效应    flywheel effect

?飞轮泵    flywheel pump

?弹性制造系统    FMS (= flexible manu- facturings system)

?泡沫    foam

?喷泡器    foam (or froth) sprinkler

?现场发泡    foamed in place

?泡绵    foamed plastic

?蜂巢式泡绵    foamed resins honey comb

?泡沫灭火剂    foamite

?泡沫灭火器    foamite extinguisher

?佛廷格水力联结器    Foettinger hydraulic coupling

?喷雾嘴    fog (or spray) nozzle

?雾钟    fog bell

?雾笛    fog horn

?雾中信号    fog signal

?雾号台    fog signal station

?雾标    fog target