Read Edit View history 宇宙线 yǔzhòuxiàn cosmic ray Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 宇宙线/ 宇宙線 yǔzhòuxiàn cosmic ray 科学家们正在高海拔实验室观测宇宙线。 Edit Delete References Add reference No references for this word.