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sacs

英 [sæks]

美 [sæks]

n.  (人、动植物体内的)囊,液囊,气囊
sac的复数

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.
    1. The lungs consist of millions of tiny air sacs.
      肺由数百万个小气囊组成。

双语例句

  • The pollen germination of Avena nada appeared to be normal on the stigma of Avena magna and the pollen tubes grew into the style and entered the embryo sacs.
    结果表明,六倍体裸燕麦花粉在四倍体大燕麦柱头上萌发良好,花粉管可顺利长入花柱和胚囊。
  • Bursae are small sacs located between moving structures such as bones, muscles, skin and tendons.
    滑囊是较小的囊状物,位于活动的结构间,如骨骼,肌肉,皮肤和肌腱。
  • The lungs are made up of small sacs called alveoli, which fill with air when a healthy person breathes.
    肺由称为肺泡的小气囊组成,当健康的人呼吸时会充满空气。
  • The fry have hatched and have huge yolk sacs.
    南联盟已孵化和巨大的卵黄囊。
  • Many frogs amplify the sound of their voices using special sacs in their throats.
    许多蛙类动物利用其喉内特殊的囊将声音放大。
  • An item resembling one of the membranous sacs in animals.
    形状象动物体内有膜囊状器官的物体。
  • Cost-effectiveness in the laboratory: should we examine hernia sacs or calcified heart valves?
    实验室中的成本效益:我们应该检验疝气囊或钙化心瓣膜吗?
  • ( of e.g. fruits and anthers) opening spontaneously at maturity to release seeds. Each lobe contains two pollen sacs that produce very large quantities of small pollen grains.
    (例如指水果和花粉囊)在成熟时自然的打开释放种子。左右两侧花粉囊之间是薄壁细胞构成的药隔,药隔中的维管束与花丝维管束相连。
  • Silken egg sacs may be hidden in vegetation, or in crevices, or buried in the ground.
    丝质卵囊可能被藏在植物或石缝中,或被埋在地下。
  • The embryo sacs observation is one of the main study method for embryology.
    胚囊观察是植物胚胎学的主要研究方法之一。