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
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.- The lungs consist of millions of tiny air sacs.
肺由数百万个小气囊组成。
- The lungs consist of millions of tiny air sacs.
双语例句
- Some of the models contained an air sac.
其中一些模型含有气囊。 - 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 nectar that a bee can bring back in its honey sac.
蜜蜂能装入蜜囊带回去的花蜜。 - 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。 - 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 lungs consist of millions of tiny air sacs.
肺由数百万个小气囊组成。 - 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。 - 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 - 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。 - 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。