secretory granule的用法和樣例：
例句
- Secretory granules are apparently built up from fusion of smaller vesicles.
分泌顆粒顯然是從較小的小泡融合而成的。 - Under TEM, different kinds of secretory granules can be seen in the cytoplasm of the glandular cell bodies and in the connecting glandular tegument.
離腺皮層遠的腺細胞體電子密度高并含有與腺皮層相應的典型分泌顆粒，而靠近腺皮層的腺細胞體電子密度低，所含分泌顆粒較少。
