saltpetre
n. [矿物] 硝石;[无化] 硝酸钠
例句
What disease can abstruse saltpetre Zun treat?
奥硝唑可以治疗什么病啊?
The nitrate is also called saltpetre, and the carbonate is called potash.
硝酸盐亦称硝石,碳酸盐亦称钾碱。
Elaborate the action of product cost and the way that reduce cost of saltpetre ammonium product.
阐述产品成本的作用和降低硝铵产品成本的途径。