英语语法分析

When Pavlov put food powder in the dog's mouth, and saliva was generated. That's an unconditioned stimulus giving rise to an unconditioned response.

巴甫洛夫给狗喂食，狗会分泌唾液。那就是非条件刺激引起了非条件反射。

The exteriorized section became known as the Heidenhain or Pavlov pouch.

外化的部分被称为海登海因或巴甫洛夫袋。

Pavlov discovered that when dogs were fed meat powder they salivated.

巴甫洛夫发现当喂狗吃肉末的时候它们就留口水。