cosmic ray meson宇宙线: cosmic ray; ultrarays介子: meson; mesotron; misoton; ba ...初级宇宙线: primary cosmic rays次级宇宙线: secondary cosmic rays次宇宙线: 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:宇宙线介子,即可在微信中查询翻译