Each system organization is ordinal to radiative sensitive degree for: The reproduction of spermary is epithelial, hematopoiesis cell, alvine path is epithelial, skin base cell.

• 各系统组织对放射的敏感程度依次为：睾丸的生殖上皮细胞，造血细胞，肠道上皮细胞，皮肤基底细胞。