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

• Gallbladder: Muscular membranous sac under the liver that stores and concentrates Bile.
  胆囊：见于许多脊椎动物的肌性膜性囊，用以贮存及浓缩胆汁。
• 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。
• This shaft have overcome the problems which a single air sac of a traditional one existence.
  这种轴克服了传统气胀轴单一气囊所存在的问题。
• 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。
• In the first method, one drop of this dilution is dropped into the conjunctival sac.
  第一种方法是将一滴这种稀释液滴入结膜囊。
• Some of the models contained an air sac.
  其中一些模型含有气囊。
• 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。
• The sac is very strong, like a balloon filled with water.
  这个囊很结实，就像是装了水的气球。
• The chorion and amnion are foetal membranes that contribute to the placenta and the foetal sac respectively.
  绒毛膜和羊膜是分别形成胎盘和羊膜囊的胎膜组织。
• 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