短語詞組短語medullary y ray 髓放線medullary ray pith ray 髓射線secondary medullary ray 次生髓射線medullary ray cel 髓射線細胞primary medullary ray 原生芒髓;初生髓線diffuse medullary ray 分散〔型〕芒狀髓intrafascicular medullary ray 束內(nèi)髓線medullary ray of kidney 腎髓質(zhì)射線 返回 medullary ray