英语词汇“光打孔卡片”的翻译、意思、用法、释义-英汉汉英词典

单词	光打孔卡片
释义	光打孔卡片photo aperture card，PAC
随便看	ionizing radiation standard ionizing radiation thickness meter ionizing ray ionizing rays ionizing solvent ionizing space ionizing transducer ionizing voltage ion kinetic energy spectrometry ion kinetic energy spectroscopy ion kinetic energy spectroscopy {= ikes} ion kinetic energy spectrum ion larmor ion larmor period ion larmor--period ion laser ion lattice ion lifetime ion limit ion--limit ion line ion loss ion machining ion magnetron ion mass resolution