兑水 发表于 2009-10-18 20:38:55

ASTM D 5715-2000 评估泥炭及有机土壤腐殖程度(目检/人工方法...

D5715-00 Standard Test Method for Estimating the Degree of Humification of Peat and Other Organic Soils (Visual/Manual Method)
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