名词
中文翻译：盐石
同义词：
['salt rock', 'salty rock']
例句：
-
1. Thewall saltpeter is a natural mineralthat can be used as a building material.
盐石是一种天然矿物，可以用作建筑材料。
-
2. The saltpeter deposits are foundin the desert areas of the country.
盐石矿床分布在该国的沙漠地区。
-
3. The saltpeter mine was oncea major source of wealth for the region.
盐石矿曾经是该地区的主要财富来源。