吉林省西部的松嫩平原是世界上三大苏打盐碱地集中分布区之一。

Songnen plain in the western of Jilin province is one of the three major regions of soda salt-alkalinized soil in the world.

youdao

大苏打：英文是硫代梳酸钠的简称。是显影后把照相影像定影的化学剂。

Hypo: Abbreviation for sodium hyposulphite, a chemical used to fix photographic images after development.

youdao

大苏打：英文是硫代梳酸钠的简称。是显影后把照相影像定影的化学剂。

Hypo: Abbreviation for sodium hyposulphite, a chemical used to fix photographic images after development.

youdao