【已应助】求助英文文章一个，谢谢！

dong3626 2009/05/25

[img]https://www.instrument.com.cn/bbs/images/affix.gif[/img][url=http://www.instrument.com.cn/bbs/download.asp?ID=151737]The Role of Calcium Oxalate in the Availability of Phosphorus in Soils of Semiarid Regions: A Thermodynamic Study[/url]