凹工作面钻头：concave bit
凹进的层叠拱：recessed arch
凹口流量系数：discharge coefficient for notch
凹面加工装置：cambering gear
凹入式进水口：reentrant intake
凹凸花纹效应：embossed effect
凹凸花纹针迹：outline stitch
凹凸提花短袜：links and links sock
凹凸纹轧花机：gauffer calender
凹凸轧花整理：emboss finish
凹碗状燃烧室：concaving combustion chamber
凹纹雕刻模版：intaglio pattern
凹纹雕刻印花：intaglio printing
凹纹着色效应：colour inlay effect
凹纹着色轧花：inlay printing,embo printing
凹下的换向片：low segment
凹下的云母片：low mica
凹印滚筒辊基：base cylinder, cylinder base
凹印滚筒磨床：cylinder grinding machine
螯合（作用）：chelation
螯合剂软水法：chelate softening for water
奥本海姆反射：Oppenheim's reflex
奥迪普斯情结：Oedipus complex
奥顿阶<地>：Autunian
奥顿重排作用：Orton rearrangement
奥尔良棉毛呢：Orleans cloth
奥吩胂盐酸盐：oxyphenarisine hydrochloride
奥格林尼电炉：Augekini furnace
奥霍统<地>：Ochoan
奥-卡二氏征：Oliver-cardarelli sign
奥拉克尔系统：ORACLE
奥利弗隔膜泵：Oliver diaphragm pump
奥利弗过滤器：Oliver filter
奥米伽传感器：omega sensor
奥米伽导航仪：Omega navigator
奥墨伽铬红B：omega chrome red B
奥尼翁一尼翁：O'nyong-nyong
奥-施二氏病：Osgood-Schlatter disease,Osgood-Schlatter's disease
奥氏甲烷杆菌：Methanobacterium omelianskii
奥斯陆结晶器：Oslo crystallizer
奥斯瓦德纯度：Ostwald purity
奥陶巴肉豆蔻：Myristica otoba
奥特开水丝蚓：Limnodrilus udekemianus
奥托精硫化蓝：autogene sulfur blue
奥-韦二氏病：Osler-Vaquez disease
奥西恩近似式：Oseen's approximation
奥伊洛特模型：Oldroyd model
澳大利亚抗原：Australia antigen
澳大利亚网络：AUSINET,Australian network
安全人机工程学：ergonomics
凹进的层叠拱：recessed arch
凹口流量系数：discharge coefficient for notch
凹面加工装置：cambering gear
凹入式进水口：reentrant intake
凹凸花纹效应：embossed effect
凹凸花纹针迹：outline stitch
凹凸提花短袜：links and links sock
凹凸纹轧花机：gauffer calender
凹凸轧花整理：emboss finish
凹碗状燃烧室：concaving combustion chamber
凹纹雕刻模版：intaglio pattern
凹纹雕刻印花：intaglio printing
凹纹着色效应：colour inlay effect
凹纹着色轧花：inlay printing,embo printing
凹下的换向片：low segment
凹下的云母片：low mica
凹印滚筒辊基：base cylinder, cylinder base
凹印滚筒磨床：cylinder grinding machine
螯合（作用）：chelation
螯合剂软水法：chelate softening for water
奥本海姆反射：Oppenheim's reflex
奥迪普斯情结：Oedipus complex
奥顿阶<地>：Autunian
奥顿重排作用：Orton rearrangement
奥尔良棉毛呢：Orleans cloth
奥吩胂盐酸盐：oxyphenarisine hydrochloride
奥格林尼电炉：Augekini furnace
奥霍统<地>：Ochoan
奥-卡二氏征：Oliver-cardarelli sign
奥拉克尔系统：ORACLE
奥利弗隔膜泵：Oliver diaphragm pump
奥利弗过滤器：Oliver filter
奥米伽传感器：omega sensor
奥米伽导航仪：Omega navigator
奥墨伽铬红B：omega chrome red B
奥尼翁一尼翁：O'nyong-nyong
奥-施二氏病：Osgood-Schlatter disease,Osgood-Schlatter's disease
奥氏甲烷杆菌：Methanobacterium omelianskii
奥斯陆结晶器：Oslo crystallizer
奥斯瓦德纯度：Ostwald purity
奥陶巴肉豆蔻：Myristica otoba
奥特开水丝蚓：Limnodrilus udekemianus
奥托精硫化蓝：autogene sulfur blue
奥-韦二氏病：Osler-Vaquez disease
奥西恩近似式：Oseen's approximation
奥伊洛特模型：Oldroyd model
澳大利亚抗原：Australia antigen
澳大利亚网络：AUSINET,Australian network
安全人机工程学：ergonomics