yolkn.蛋黄
yolk skin[医] 卵黄膜
yolk agar[医] 卵黄琼脂
yolk plug卵黄栓
yolk vein卵黄静脉
yolk body卵黄体
yolk coal松软煤
yolk lobe卵黄叶
yolk cells[医] 卵黄细胞
yolk space卵黄周隙
yolk-sac卵黄囊