英语词汇“yolk sac, yolk bag”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	yolk sac, yolk bag
释义	yolk sac, yolk bag 胚胎；卵黄囊从脊椎动物胚胎的中肠脐伸出的膨大的胚外囊体，富含卵黄；卵黄囊大多数哺乳动物胚胎中不含卵黄的、在胚胎发育早期变为退化器官的同源器官
随便看	medical diagnosing X-ray medical diagnosis medical diagnosis expert system medical diagnosis on death medical diagnosis system medical diagnosis systemmds medical diagnosis systemMDS medical diagnosis technology medical diagnostic radiation medical diagnostic radiography medical diagnostics Medical Diagnostics Imagery System medical diagnostic system medical diagnostic X-ray apparatus Medical diagnostic X-ray image intensifier medical diagnostic X ray unit medical diagnostic X-ray unit Medical Diagnostic X-ray Wordcrs medical dialysis bed-scale medical diathermy Medical Dictionaries medical dictionary medical diet medical digest medical digital image