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。

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 peritoneal cavity is a closed sac.
腹膜腔是一个封闭的囊腔。
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。
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。
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。
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
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 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。
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。
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。