例句與造句

1. Lead ( II ) phosphate is insoluble in water and alcohol but soluble in HNO 3 and has fixed alkali hydroxides.
2. This part he called " spiritus igneo-aereus, " or sometimes " nitro-aereus ", for he identified it with one of the constituents of the acid portion of nitre ( now called potassium nitrate, KNO 3 ) which he regarded as formed by the union of fixed alkali with a spiritus acidus.
3. It's difficult to find fixed alkali in a sentence. 用fixed alkali造句挺難的