SAC

英

美

abbr.  南方空军司令部（南非）(Southern Air Command)

复数：sacs　

TOEFL医学

Collins.1 / BNC.16085 / COCA.17836

牛津词典

noun

• （人、动植物体内的）囊，液囊，气囊
  a part inside the body of a person, an animal or a plant, that is shaped like a bag, has thin skin around it, and contains liquid or air

柯林斯词典

• N-COUNT (动物体内的)囊，液囊，气囊
  Asacis a small part of an animal's body, shaped like a little bag. It contains air, liquid, or some other substance.
  1. The lungs consist of millions of tiny air sacs.
     肺由数百万个小气囊组成。

双语例句

• The peritoneal cavity is a closed sac.
  腹膜腔是一个封闭的囊腔。
• Syringomyelia is a condition where a fluid filled sac develops in the spinal cord.
  脊髓空洞症是一种脊髓病变，脊髓内形成包含液体的囊。
• I accidentally ripped her dural sac.
  我不小心撕裂了她的硬脊膜囊。
• Amniocentesis is the removal of fluid from the amniotic sac.
  羊膜穿刺术是从羊膜囊抽取羊水的技术。
• Embryo sac and embryo development and embryo rescue in Lilium distant cross
  百合远缘杂交的胚囊和胚胎发育及胚拯救
• Starch grains present in the embryo sac and placenta are utilized by the embryo.
  传染性腔上囊病原体存在于胚囊和胎座中的淀粉粒为胚胎所利用。
• Objective To observe the application of amniotic membrane in conjunctival sac plasty.
  目的总结羊膜在结膜囊成形术中的应用及临床疗效。
• Study of Antibiotics and Conjunctival Sac Wash Before Cataract Surgery
  白内障患者术前使用抗生素和结膜囊冲洗的临床研究
• ObjectiveTo study the clinical effectiveness of a modified laparoscopic high ligation in treatment of inguinal hernial sac in infants.
  目的探讨改良的腹腔镜下疝囊高位结扎术治疗小儿腹股沟斜疝的效果。
• The yolk sac and yolk stalk on one of them were well preserved.
  观察了三例人胚外形，其中一例还有保存良好的卵黄囊和卵黄蒂。