phosphorusn.磷
phosphorus ester磷酸酯
phosphorus pools哀牢山
phosphorus shape磷形态
phosphorus glass磷玻璃
phosphorus oxide磷氧化物
phosphorus cycle磷素循环
phosphorus grads磷梯度
phosphorus dregs磷渣
phosphorus level磷素水平
phosphorus forms磷形态