英语词汇contrast medium的读音、翻译及短语词组释义-英汉双解词典

单词	contrast medium
释义	contrast medium【医】造影剂, 对比剂 contrast medium contrast medium n.（名词）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
随便看	half-tone ink half-tone original half tone scale half tone signal half-track halftrack half track recorder half-track tape half-truth half-value layer half-value layer(HVL) half-value period half-value thickness half-value width half vision half volley half wave half-wave amplifier half-wave antenna half-wave circuit half-wave diode detector half-wave dipole half-wave layer half wave length half wavelength criterion

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