purpose pass to analysis of relations between the eyeable area and radiate dosage at maze, provide a reference for right choice of the lead equivalent of the protection door.
目的通过对放射防护中可视面积对迷路口的剂量影响分析,为正确选择防护门铅当量提供参考依据。
and then they oviposited in the soil of the clearing nearby, and left over an eyeable aperture on the surface.