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。

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。
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。
The peritoneal cavity is a closed sac.
腹膜腔是一个封闭的囊腔。
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。
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
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。
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
Embryo sac and embryo development and embryo rescue in Lilium distant cross
百合远缘杂交的胚囊和胚胎发育及胚拯救
Some of the models contained an air sac.
其中一些模型含有气囊。
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。