Material used as a screen against ionizing radiation, esp. during radiotherapy; the efficiency of this, as determined by its nature and…
| 单词 | θ13947 |
| 释义 | the world > health and disease > healing > medical treatment > treatment by radiation > [noun] > by X-rays > filter or screen (2) screenage1916 Material used as a screen against ionizing radiation, esp. during radiotherapy; the efficiency of this, as determined by its nature and… filter2006 Radiology and Nuclear Physics. An object or device that is placed in the path of a beam of X-rays, particles, etc., in order to absorb components… |
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