The main reason is that Fe accumulates on superficial of root system and measuring value can't represent absorptive amount. Thereby, the standard system of Fe measuring method need change in future.
对于铁元素，这三种化学方法与生物测定法均未达到显著相关，就其原因，与生物培养收获物中铁在根系表面富集有关，生物样本的测定结果并不能代表生物的吸收量，因此，对土壤有效铁测定的标准体系应做适当的改变。
参考来源 - 重庆测土施肥中微量元素测定方法比较研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The influences of the species and added amount of water-resistance agents on the properties of coated high absorptive base paper with low basis weight were investigated.
研究了涂料体系中抗水剂的种类和用量对低定量、高吸收性原纸涂布后主要性能的影响。
The reverberation time and noise level of tunnel-typed public works can be reduced by adding large amount of acoustical structure with high absorptive coefficient.
隧道型公共设施的声环境，可以使用大量具有高吸声系数的吸声构造，铺设于隧道拱壁及轨道铺面，以降低混响时间及噪声。
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