secretory canal

例句：

1. 1. The gland produces a secretionthat is used to lubricate thejoints.
   这个腺体产生一种分泌物，用于润滑关节。
2. 2. The secretory canal of the pancreas is responsiblefor releasing digestive enzymes into the bloodstream.
   胰腺的分泌管负责将消化酶释放到血液中。
3. 3. The secretory canal of the kidneys is lined withspecialized cells that filter waste products from theblood.
   肾脏的分泌管被专门化的细胞所覆盖，这些细胞过滤血液中的废物。