通过模拟酸雨浸泡和淋溶实验，弄清楚铬渣的毒性作用和对环境的危害性。
Through simulation acid rain marinate and eluviate experiment, make clear the toxicity and the harm to environment of chromium slag.
然而，黄土高原中部大多数剖面由于沉积速率较低(特别是S1地层)，加上后期强烈的成壤作用和淋溶作用可能影响其气候记录。
But, low sedimentary rate in many profiles, especially in S1, and following strong pedogenesis and eluviation would have effect on those climate records.
此外，土壤物质在淋溶、迁移和聚集过程中，还受到各种因素作用距离长短的重要影响。
Furthermore, materials of soil are greatly influenced by the distance in the process of eluviation, migration and accumulation.
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