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

• These abnormalities would cause the abnormal structure of mature embryo sac.
  这些异常可能最终导致多种结构异常成熟胚囊的形成。
• ObjectiveTo study the effects of glycyrrhizin on intestinal absorption of paeoniflorin by the everted rat gut sac model.
  目的研究甘草酸对芍药苷大鼠肠吸收的影响。
• 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。
• 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。
• 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。
• 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。
• Pollen tube entered the embryo sac via one synergid and in it released two sperms.
  花粉管经由一个助细胞进入胚囊，并在助细胞中释放两个精子。
• 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。
• The experiment was conducted to study the nutrition absorption and utilization in yolk sac of fasting gosling.
  以扬州鹅初生雏鹅为试验对象，研究在绝食条件下雏鹅对卵黄囊营养吸收与利用的规律。
• On midsagittal images, AP dural sac diameter and the upper-endplate angles of L1 and S1 were measured.
  在正中矢状位图像上测量了L1和S1水平的硬脊膜囊的前后径和上终板角。