?[润]滑油过滤器    lubricating oil filter

?润滑油残余柜    lubricating oil residue tank

?滑油集油池    lubricating oil sump

?滑油[集油]池    lubricating oil sump

?滑油柜    lubricating oil tank

?[润]滑油柜    lubricating oil tank

?[润]滑油泵    lubricating pump

?润滑    lubrication

?[润]滑油    lubrication oil

?润滑器    lubricator

?纵帆前缘    luff

?大滑车组    luff tackle

?动臂起重机    luffing crane

?突缘,耳,凸缘    lug

短角材    lug angle

?短角材    lug angle (or piece)

?短角铁连接    lug attachment

?短角铁连接    lug attachment (or clip)

?滑车挂板    lug pad

?梯形帆    lug sail

?三角帆    lug sail

?行李间    luggage (or baggage) room

?梯形帆船    lugger

?木材,木料    lumber

?木材[载运]船    lumber carrier (or ship)

?载木干舷    lumber freeboard

?木材钩    lumber hook

?圆材架    lumber iron

?[装]载木[材]载重线    lumber loadline

?木材船    lumber ship

?流明(烛光单位)    lumen

?附灯救生圈    luminous buoy

?发光涂料    luminous paint

?块煤    lump coal

?堆集质量系统    lumped mass system

?[船]突倾侧    lurch

?墙架支撑器    luttress

?勒克斯(公尺烛光)    lux

?轻载    LW (= light weight)

?满载水线    LWL (= load water line)

?最低水位    LWL (= lowest water level)

?轻水式反应器    LWR (= light water reactor)