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词汇 contrast medium
类别 英汉双解翻译词典
释义 contrast mediumn.(名词)
  1. A substance, such as barium or air, used in radiography to increase the contrast of an image. A positive contrast medium absorbs x-rays more strongly than the tissue or structure being examined; a negative contrast medium, less strongly.反差媒质:射线照相中用来提高图象明暗反差的物质,如钡或空气。正片的反差媒质比起被检测的组织或结构来吸收X光射线的能力要强;负片的反差媒质则较之弱些
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