nuclear work放射性: radioactivity; activity; emi ...操作: operate; manipulate; handle中等放射性操作: medium-level work放射性核素操作: radionuclide procedure极性操作: polar operation下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:放射性操作，即可在微信中查询翻译
