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

• Surgical methods included direct searching method, curved needle method and lacrimal sac incision.
  手术方法分别采用直接寻找法，弯针法，泪囊切开法。
• Three pregnant uterus can be open and add to simulated gestation sac;
  三个怀孕子宫都可以打开，放入模拟妊娠囊。
• Several live worms were found in his conjunctiva sac.
  后来在门诊中发现结膜囊里有数只活寄生虫。
• The nectar that a bee can bring back in its honey sac.
  蜜蜂能装入蜜囊带回去的花蜜。
• 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。
• 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。
• 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。
• 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。
• Application of digital imaging technique in quantitative analysis of blood vessels in chick embryo yolk sac membranes
  数字图像分析技术在鸡胚卵黄囊膜血管形成模型中的应用