yolk-sac

基本解釋

• 卵黃囊

同根派生

• yolk-sac相關(guān)詞

英漢例句

雙語例句

• There is a big oil ball on the surface of yolk-sac of perch.
  胚胎卵黃囊表面有一個大圓形油球。
• Results: AFP was significantly increased in 85% patients with hepatoblastoma and 93% patients with yolk-sac tumors.
  結(jié)果：肝母細(xì)胞瘤和卵黃囊瘤術(shù)前血清AFP陽性率分別為85％，93％。
• Aim : To investigate the diagnosis and predication value of serum AFP in infants with hepatoblastoma and yolk-sac tumors.
  目的：探討監(jiān)測血清AFP對小兒肝母細(xì)胞瘤和卵黃囊瘤診斷和預(yù)后的意義。

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詞組短語

短語

• yolk -sac larvae 卵黃囊仔魚
• visceral yolk -sac 臟層卵黃囊

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英英字典

柯林斯英英字典

• the membranous sac that is attached to the ventral surface of the embryos of birds, reptiles, and some fishes and contains yolk

• yolk-sac劍橋字典
• yolk-sac柯林斯字典

專業(yè)釋義

農(nóng)業(yè)科學(xué)

• 卵黃囊

  The development of embryo and yolk-sac stage of Ictalurus punctatus were studied in the paper by using methods of observing and describing.
  試驗對斑點叉尾的胚胎及卵黃囊期仔魚形態(tài)發(fā)育的過程進(jìn)行觀察、描述,研究了其發(fā)育特征。