?港内转速,港内船速    habour speed

?船表,船钟    hack (or deck) watch

?弓锯    hack saw

?[毛]细裂痕    hair crack

?毛床垫    hair mattress

?半梁    half beam

?半宽线图    half breadth plan

?半组合曲[柄]轴    half built-up (or semi built-up) crank shaft

?半肋骨(木船)    half frame

?半载,半负荷    half load

?半船模    half model

?舷窗半遮蔽板    half port

?半圆条    half round bar

?半圆型钢    half round bar steel

?半圆空心加强材    half round stiffener with hollow core

?半转速(港内)    half speed

?半波天线    half wave antenna

?半波整流    half wave rectification

?半肋材(木船)    half-floor

?大厅入口    hall entrance

?油井水泥浇贯器(钻油台)    halliburton

?帆旗升降索    halliyard (or halyard)

?卤化碳氢化合物系统(灭火)    halogenated hydrocarbon system

?海龙[灭火剂]    halon

?半截门,两截门    halved door

?对嵌接头    halving joint

?平分线    halving line

?锤,铆头    hammer

?锤击检验,锤击试验    hammer (or hammering) test

?锤整    hammer dressing

?锤型起重机    hammer head crane

?撞锤    hammer kit

?引擎锤震现象    hammer of engine

?锤击点    hammer point

?断续电点火    hammer spark (or make and break) ignition

?锤击试验    hammer test

?锻接    hammer welding

?锤击试验    hammering test

?吊床    hammock

?手摇泵    hand (or manual) pump

?手动水泵    hand bilge pump

?手钻    hand bore