SAC

英

美

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

复数：sacs　

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

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。

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。
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。
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。
The lungs consist of millions of tiny air sacs.
肺由数百万个小气囊组成。
I accidentally ripped her dural sac.
我不小心撕裂了她的硬脊膜囊。
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。
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。
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。
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。
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