?下水释放装置    launching releasing device

?下水阻速装置    launching retarding device

?下水站(救生艇)    launching station

?下水扳机    launching trigger (or pawl, or trigger dog)

?下水台    launching ways

?下水重量    launching weight

?下水工事    launching work

?洗衣间    laundry

?洗衣机    laundry machine

?盥洗室    lavatory

?比较律    law of comparison

?相似律    law of similarity

?搓索法,层    lay

?放样法    laying off

?安放,布置,划线    layout

?配置设计,布置设计    layout design

?隔离病院,艉库    lazaret (or lazaretto)

?长柄钳,伸缩铁    lazy tongs

?铅包线    lead covered wire

?铅锤    lead hammer

?测[深]锤索    lead line

?测深操作台    lead man platform

?铅管    lead pipe

?铅管凸缘    lead pipe flange

?易熔塞,保险塞    lead plug

?铅包护皮    lead sheath

?铅包缆    lead sheathed cable

?铅套管    lead sleeve

?铅丝,保险丝,导线    lead wire

?引线    lead wire

?铅合金覆皮    lead-alloy-sheathing

?引入    lead-in

?引[入]线    lead-in wire

?导滑车    leading block

?导链滑车    leading block of chain

?导链    leading chain

?越前电流    leading current

?导缘,前缘(螺桨)    leading edge

?纵接缝    leading edge (or longitudinal seam)

?前部气裙(气垫船)    leading skirt

?铅包铠装电缆    leadsheathed and armoured cable

?泄漏叶端泄漏(涡轮机)    leak (or leakage) tip leak