《英汉医学词典》ionic x ray contrast medium 离子型X线造影剂 ionic x-ray contrast medium: 离子型x线造影剂non-ionic x-ray contrast medium: 非离子型x线造影剂x-ray contrast media: x射线对比剂x-ray diffraction contrast: 射线衍衬法medium-voltage x-ray: 中等电压x线下载手机词典可随时随地查词查翻译