pollen sac

• 花粉囊

pollen sac的用法和样例：

例句

1. The pollen is released when the lobes split open longitudinally.
   当花粉成熟时，药隔每侧的两个花粉囊相互连通。
2. Each lobe contains two pollen sacs that produce very large quantities of small pollen grains.
   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。