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。

The peritoneal cavity is a closed sac.
腹膜腔是一个封闭的囊腔。
The yolk sac and yolk stalk on one of them were well preserved.
观察了三例人胚外形，其中一例还有保存良好的卵黄囊和卵黄蒂。
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。
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。
They could prosecute Mr Cohen. They could charge SAC with racketeering, and other offences.
他们可以对科恩提起公诉，也可以指控SAC涉嫌诈骗以及其他违法行为。
Some of the models contained an air sac.
其中一些模型含有气囊。
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。
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。
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。
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。