如何使用 "saltpeter" 造句

1. Taught us to mix sulphur and saltpeter .
你教我们去调配硝石与硫磺。
2. Where did you get the saltpeter ?
你从哪里拿到硝酸钾?
3. Back then , potash was derived from the ashes of hardwood trees and other plants , and mainly used to make soap , glass and saltpeter for gunpowder .
那时碳酸钾是从硬木树和其他植物的灰中提取出来的,主要用于生产肥皂、玻璃和火药硝石。
4. Humberstone processed the largest deposit of saltpeter ( nitrate 's nickname ) in the world and provided the valuable mineral to countries in north america and europe for fertilizers , food preservatives and explosives .
亨伯斯通曾经加工了全世界最大储量的硝酸钾(硝酸盐的小名),并且为北美和欧洲国家提供过用于化肥、食品防腐剂和炸药的有价值矿物。