带灯座大口灯    large open lamp with stand

大型反光镜    large optical reflector

大光腔二极管    large optical-cavity diode

大光腔激光二极管    large optical-cavity laser diode

大扁圆头带榫螺栓    large oval head nibbed bolt

大扁圆头铆钉    large oval head rivet

大扁圆头半空心铆钉    large oval head socket shank rivet

大扁圆头方颈螺栓    large oval head square neck bolt

大猫头鹰    large owl

大药丸    large pill

大功率继电器    large power relay

大功率晶体管    large power transistor

大功率电子管    large power? tube

大型压力容器    large pressurized vessel

大紫花芸豆    large purple coloured kidney bean

盐渍大红辣椒    large red chilli in brine

大红鱼牛奶朱古力豆    large red fish milk chocolate bean

大型研究用显微镜    large research microscope

大锯    large saw

大秤    large scale

大型计算机    large scale computer

大规模集成电路芯片    large scale integrated chip

大规模集成电路    large scale integrated circuit

大屏幕显示器    large screen display

大屏幕投影机    large screen projector

大屏幕雷达指示器    large screen radar indicator

大屏幕电视机    large screen television

大型屏幕录像投影机    large screen video projector

大轴套    large shaft sleeve

大号椰子纤维刷    large size coconut fibre brush

大型折叠木晾衣架    large size folding wood dryer

大型反射炉    large size reverberatory furnace

大型空间望远镜    large space telescope

人造丝大方巾    large spun rayon square

大方坯连铸机    large square bland continuous-casting machine

大荷兰豆    large sweet broad peas

大茶匙    large tea spoon

爵士乐手鼓    large tom-tom

大型工具制造工用显微镜    large toolmaker‘s microscope

重型连续压力机    large transfer press

大型运输机    large transport airplane

斜纹布    large twill