电离辐射吸收的能量的单位，等于受照射物质每克00格或每千克0.0焦耳。
A unit of energy absorbed from ionizing radiation, equal to 00 ergs per gram or 0.0 joule per kilogram of irradiated material.
此外，芯片的制作工艺也需要入射光线通过淀积在硅片上的电路，这使得光照度(光源照射在被照物体单位面积上的光通量)降低。
On top of that, the way chips are made requires the incoming light to pass through circuitry that has been deposited on to the silicon, reducing the level of illumination.
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.
采用聚光器可提高太阳照射在单位面积上的能量密度，从而克服太阳能分散性的缺点。
Because a concentrator can be used to improve the energy density in a unit area, it can reduce the dispersion of solar energy.
如果治疗的区域大于一个单位的治疗区域，就需要用多次照射来覆盖整个治疗区域，在实践中，大多数的目标体积被照射1至15次。
For a target volume larger than one shot, multiple shots can be used to cover the entire target. In practice, most target volumes are treated with 1 to 15 shots.
如果治疗的区域大于一个单位的治疗区域，就需要用多次照射来覆盖整个治疗区域，在实践中，大多数的目标体积被照射1至15次。
For a target volume larger than one shot, multiple shots can be used to cover the entire target. In practice, most target volumes are treated with 1 to 15 shots.
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