We make superphosphate by reacting rock phosphate with sulphuric acid.
我们使磷酸盐岩同硫酸发生化学反应制造过磷酸钙.
📖 牛津释义
phosphate
n
(a) [C, U] any salt or compound of phosphoric acid 磷酸盐; 磷酸酯.
(b) [C often pl, U 作可数名词时常作复数, 亦作不可数名词]
any artificial fertilizer composed of or containing these 磷肥.