The content of soil pollutants in the studying area is tapering off with lasting dreg field blowdown ditching.
研究区土壤中的污染物含量随着与弃渣场排污沟距离的增大呈递减的趋势。
This will lay the foundation for the thermal performance test, air dynamic field test, dreg characteristic test and determinative test of the main design parameters.
从而为生物质成型燃料燃烧设备热性能、空气动力场、结渣特性、主要设计参数确定等试验奠定了基础。
The invention belongs to the technical field of building materials and in particular relates to a porous air brick prepared by utilizing industrial waste dreg.
本发明属于一种建筑用材料的技术领域，尤其涉及一种利用工业废渣制备的多孔空心砖。
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