基本解释n.射线可透性；射线透射性同根派生 英汉例句linear cortical radiolucency (骨)皮质线样透X线区decreased radiolucency 射线可透性减低increased radiolucency 射线可透性增加central radiolucency 中心透亮征radiolucency, decreased 射线可透性减低