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704 双U形槽 double…U groove
705 双V形槽;X形槽 double…V groove
706 双面焊接接合 double welded joint
707 双线式 double wire system
708 加力板;加强板;二重板 doubling plate (or doubler)
709 和面器 dough mixer
710 鸠尾 dovetail
711 鸠尾接合 dovetail joint
712 鸠尾榫眼 dovetail mortise
713 鸠尾'形'板 dovetail plate
714 鸠尾榫舌 dovetail tongue
715 深海作业艇 DOWB (= deep ocean work boat)
716 1)定位销;合钉 2)双尖钉 dowel
717 销合 doweling
718 定位销;合钉 dowel pin
719 降水管(锅炉) down cast (or er)
720 进排气通风筒 down cast and up…take ventilator
721 降流管集箱;降流管头箱 down cast header
722 降水管;降流管 downcast pipe (or downer)
723 进气通风筒 down cast ventilator
724 降水管(锅炉) down…er tube
725 下坡度与上坡度 down…grade and up…grade
726 下向焊'接' down hand welding
727 下拉索 downhaul
728 下坡焊'接' down hill direction welding
729 下行冲程 down stroke
730 飞轮泵 downton pump
731 下向通风器 downward ventilator
732 下溜 down wash
733 俯焊;平焊 down welding
734 1)吃水 2)送风 3)绘图 draft (or draught)
735 1)吃水计 2)通风压力计 draft gauge
736 通风落差 draft head (or height)
737 绘图 drafting
738 通风损失 draft loss
739 吃水标 draft mark
740 吃水标尺 draft scale
741 绘图员 draftsman
742 送风道 draft trunk
743 1)曳力 2)拖曳 3)下模箱 drag
744 拖锚 drag anchor
745 制动链(下水) drag chain
746 曳力系数 drag coefficient
747 曳升力比 drag…lift ratio
748 拉杆 drag link (or suspension rod)
749 气割尾焰 drag of gas cutting
750 拖吸式挖泥船 drag suction dredger
751 排泄 drain
752 排泄装置 drainage
753 排泄柜 drain cistern
754 排泄旋塞 drain cock
755 排泄孔 drain hole
756 水排泄 draining bilge
757 排泄管 drain pipe
758 排泄塞 drain plug
759 污水泵 drain pump
760 污水分离器 drain separator
761 排泄阱 drain steam (or water) trap
762 温差排泄阱 differential drain trap
763 排泄柜 drain tank
764 排泄阱 drain trap
765 排泄阀 drain valve
766 排泄井 drain well
767 1)吃水 2)送风 3)绘图 draught (or draft)
768 吃水调整 draught adjusting
769 艉吃水 draught aft
770 鼓风机 draught blower
771 艏吃水 draught forward
772 1)风压计 2)吃水计 draught gauge
773 吃水标 draught mark
774 吃水标检查 draught mark inspection
775 汲水桶 draw bucket
776 手拉压力历程图 draw card
777 1)图 2)绘图 drawing
778 设计图 design drawing
779 细部图;分图 detail drawing
780 拉制管 drawn (or solid drawn) tube
781 老虎钳 draw vise (or vice)
782 钻头吊缆;绞机(钻油台) draw works
783 挖泥泵 dredge pump
784 挖泥船 dredger
785 厨台 dresser (or dressing table)
786 套筒伸缩接头 dresser coupling (or dresser type expansion joint)
787 连槽厨台 dresser with sink
788 船饰 dressing
789 船饰索 dressing line
790 调理台 dressing table
791 干燥剂;干燥器 drier (or dryer)
792 1)冲销;对孔销 2)漂流;漂移 3)航差 drift
793 流程;漂流 driftage
794 流锚 drift anchor
795 1)偏流角 2)偏航角 drift angle
796 流网渔船 drifter
797 扩管试验;顶裂试验 drifting test
798 流网 drift net
799 1)钻头 2)钻床 3)钻 4)操演 drill
800 钻头夹头 drill chuck
801 钻头(钻油台) drill collar
802 钻床 driller
803 钻凿 drilling
804 钻探负荷 drilling load
805 钻床 drilling machine
806 钻油台 drilling rig
807 钻孔试验 drilling test
808 钻井用水(钻油台) drilling water
809 钻管(钻油台) drill pipe
810 直立钻床 drill press (or upright drill)
811 1)钻油船 2)训练船 drill ship
812 钻头杆试验 drill stem test (DST)
813 钻管组(钻油台) drill string
814 钻孔试验 drill test
815 饮用水 drinking water
816 滴盖 drip cover
817 滴注润滑 drip…feed lubrication
818 承油盘 drip pan
819 防滴 drip…proof
820 滴盘 drip tray (or pan)
821 从动轴 driven shaft
822 从动轮 driven wheel
823 1)螺丝起子 2)驱动机 3)后桅斜桁帆 4)艉纵帆 driver
824 '三桅以上船'最后桅 driver mast
825 海锚 driving (or floating; or sea) anchor
826 驱动缸 driving cylinder
827 推进面(螺桨) driving face
828 打入配合 driving fit
829 主动轴 driving shaft
830 推进面(螺桨) driving (or acting) surface
831 驱动组 driving unit
832 主动轮 driving wheel
833 下垂特性 drooping characteristics
834 落下(下水) drop
835 落锤锻'造' drop forging
836 落锤 drop hammer
837 活动防浪板 drop keel
838 落冲 drop stamp
839 落板列 drop (or goring) strake
840 坠落试验 drop test
841 落重试验 drop weight test
842 1)鼓轮;圆筒 2)桶 drum
843 1)鼓'筒'头(涡轮机) 2)绞盘头 drum head
844 鼓形轮子 drum rotor
845 鼓级(涡轮机) drum stage
846 干燃室锅炉 dry back boiler
847 干电池'组' dry battery
848 散装干货 dry bulk
849 干货 dry cargo
850 干电池 dry cell
851 干燃室锅炉 dry bustion boiler
852 干燃室 dry bustion chamber
853 干罗经 dry pass
854 干货柜 dry container
855 干蚀 dry corrosion
856 干'船'坞 dry dock
857 进坞泛水装置(弹药库) dry dock flood
858 1)干燥剂 2)干燥器 dryer
859 干摩擦 dry friction
860 干度 dryness
861 干度因子;干度率 dryness factor (or fraction)
862 干粉灭火器 dry powder fire extinguisher
863 干存法(锅炉) dry process
864 干粮 dry provision
865 干粮库 dry provision store
866 干朽(木材) dry rot
867 干蒸汽 dry steam
868 D形接环 D shackle
869 D形滑阀 D…slide valve
870 强度减少率 DSR (= damaged strength rating)
871 东德验船协会 DSRK (= DDR…Schiffs… Revision und Klassifikation)
872 潜水救助艇 DSRV (= deep submergence rescue vehicle)
873 钻头杆试验 DST (= drill stem test)
874 潜水支援船 DSV (= diving support vessel)
875 深海潜水艇 DSV (= deep submergence vehicle)
876 复式空气泵 dual air pump
877 双船级 dual class
878 双燃循环 dual bustion cycle
879 双循环 dual cycle
880 双面风管 dual duct
881 双燃料 dual fuel
882 双燃料引擎 dual…fuel engine
883 双塞点火 dual ignition
884 双泵 dual pump
885 两用货轮 dual purpose ship
886 双串行联结式减速齿轮 dual tandem articulated ( or locked train) type reduction gear
887 双电压直流系统 dual voltage DC system
888 轻帆布 duck
889 细帆布 duck canvas
890 帆布盖 duck cover
891 杜克勒性钢 Ducol steel
892 1)沟;槽;道 2)导风管;风道 3)导管 duct
893 导罩螺桨 ducted propeller
894 延性材料 ductile material
895 延性钢 ductile steel
896 哑罗经 dumb card (or pelorus)
897 餐用升降机 dumb waiter
898 仿真天线 dummy antenna (or phantom antenna)
899 仿真线圈 dummy coil
900 假烟囱 dummy funnel (or stack)
901 均压涨圈 dummy ring
902 垫材 dunnage
903 垫材 dunnage board (or wood)
904 垫 dunnage mat
905 复式喷雾器 duplex atomizer
906 复式喷嘴 duplex nozzle
907 双重供电 duplicate supply
908 杜拉铝 Duralumin
909 时'间'历'程'(电讯) duration
910 有限吹风时间波 duration…limited sea (or waves)
911 防尘舱壁 dust bulkhead
912 屑煤;碎煤 dust (or slack) coal
913 软木屑 dust cork (or cork dust)
914 防尘 dust proof
915 防尘型 dust proof type
916 载重吨位 DWT (= dead weight tonnage)
917 动态平衡 dynamical balancing
918 动态特性 dynamic characteristic
919 动态矩阵 dynamic matrix
920 动力混合器 dynamic mixer
921 动态规划 dynamic programming
922 动力学 dynamics
923 发电机引擎 dynamo engine
924 1)测功�