hard gamma

例句：

1. 1.The hard gamma rays from the sun penetrate the earth's atmosphere.
   来自太阳的硬伽玛射线穿透地球大气层。
2. 2.The hard gamma rays are used to detect cancer cells in the body.
   硬伽玛射线用于检测体内的癌细胞。
3. 3. The hard gamma rays have a wavelength of about 0.01 mm, which is very short compared to other types of radiation.
   硬伽玛射线的波长约为0.01毫米，与其他类型的辐射相比非常短。