cosmic ray spectrometercosmic-ray spectrometer宇宙线: cosmic ray; ultrarays谱: table; chart; register仪: appearance; bearing初级宇宙线: primary cosmic rays次级宇宙线: secondary cosmic rays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:宇宙线谱仪，即可在微信中查询翻译
