平均每个美国人每年接收360毫雷姆的射线，其中300毫雷姆来自自然放射源，60毫雷姆来自人类活动(雷姆是射线强度单位)。
The average American receives 360millirems of radiation each year, 300 from natural sources and 60 from man-made activities. (a rem is a unit of radiation exposure.)
这是一种伤害很大的激光射线，能给敌人的建筑单位造成非常大的伤害！
It is a very powerful bream that can really do a lot of damage to enemy buildings.
方法对宜宾市202家医疗单位医用X射线机房的辐射防护水平进行现场测定，对从业人员外照射个人剂量进行现场调查。
Methods We inspected the level of radiation protection of medical X-ray rooms in 202 medical institutes of Yibin city and the personal dosage of those who worked in X-ray rooms.
医用X光机是医疗、医学科研单位的先进设备，其中的图像处理和控制单元负责对X射线图像进行处理和分析，以便于进行临床诊断。
The image processing and control unit in it is responsible for processing and analyzing the X-ray image to meet the need of clinic diagnosis.
这就是为什么大众放射线摄影单位巡回学校、工厂等地时，人们就被鼓励去照X光。
X-rays are also used for studying many other things as well as human bodies.
这就是为什么大众放射线摄影单位巡回学校、工厂等地时，人们就被鼓励去照X光。
X-rays are also used for studying many other things as well as human bodies.
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