?假烟囱 dummy funnel
?假烟囱 dummy funnel (or stack)
?假烟囱 dummy funnel stack
?均压活塞 dummy piston
?均压涨圈 dummy ring
?压入螺栓 dump bolt
?纵压试验 dump test
?垫材 dunnage
?垫材 dunnage board (or wood)
?垫 dunnage mat
?复式喷雾器 duplex atomizer
?复式燃烧器 duplex burner
?假烟囱 dummy funnel (or stack)
?假烟囱 dummy funnel stack
?均压活塞 dummy piston
?均压涨圈 dummy ring
?压入螺栓 dump bolt
?纵压试验 dump test
?垫材 dunnage
?垫材 dunnage board (or wood)
?垫 dunnage mat
?复式喷雾器 duplex atomizer
?复式燃烧器 duplex burner
?双芯电缆 duplex cable
?复式喷射器 duplex injector
?复式喷嘴 duplex nozzle
?双缸泵 duplex pump
?收发双工器,双向钥(电讯) duplexer
?复件 duplicate
?双重供电 duplicate supply
?杜拉铝 Duralumin
?有限吹风时间波 duration-limited sea (or waves)
?橡胶硬度计 durometer
?轻便硬度计 duroscope
?屑煤,碎煤 dust (or slack) coal
?防尘舱壁 dust bulkhead
?屑煤,碎煤 dust coal
?防尘环 dust collar
?软木屑 dust cork (or cork dust)
?防尘 dust proof
?防尘型 dust proof type
?尘密 dust tight
?设计水位 DWL (= design water level )
?载重吨位 DWT (= dead weight tonnage)
?染料渗透检查 dye penetrant inspection
?染料渗透试验 dye penetrant test
?动态应力 dynamic (or dynamical) stress
?动平衡试验 dynamic balance test
?动力制动,动力煞 dynamic braking
?动态特性 dynamic characteristic
?动态阻尼器 dynamic damper
?动落差 dynamic head
?滑行下水 dynamic launching