Of, relating to, or containing phosphorus, especially with a valence of5 or a valence higher than that of a comparable phosphorouscompound.
磷的磷的，有关磷的，或含磷的，尤指含五价磷的，或比类似的磷化物价更高的。
2
Taking other elements in the compound inoculants into consideration, the compound inoculants with 3%Al can meet the requirement of C content in phosphorous iron.