土壤腐殖质层可被定义为在草皮与土壤表面之间的一层有机残留物。
Thatch can be described as the layer of organic residue located immediately between the sward and the soil surface.
片子上所有的有机和金属残留物均必须清除。
All organic and metallic residues on the wafers must be removed.
更能有效吸附水中的游离氯、酚、硫、油、胶质、农药残留物和其他有机污染物，余氯、半脱氯值，以及有机溶剂的回收等。
More effective adsorption of free, phenol, sulfur, oil, resin, pesticide residues and other organic contaminants, dechlorination half the value, as well as recycling of organic solvents.
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