The effective phosphorus in R13_C14 is the medium-sized space dependence, other four district are weak dependence.
C14中的有效磷为中等空间自相关，其他4区为弱自相关性。
In this paper, quick determination of the content of the effective phosphorus in the new calcium superphosphate by means of potentiometric titration has been researched.
研究了用电位滴定法快速测定新鲜过磷酸钙磷肥中有效磷含量的方法。
Phytase is one of the effective ways in solution of phosphorus pollution.
而植酸酶是解决磷污染的有效途径之一。
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