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谁能准确帮我翻译下面这段英文
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Both the Slaughterville and Teller soils were observed in this study at concentrations of 0.5% and 1% for each A1, C1, and C2. Unaltered samples of each soil were tested as controls.Soils were prepared by adding a ten percent (by weight) aqueoussurfactant solution to a 2 kilogram sample of dry soil. Surfactant solution was added by evenly spraying the soil with a fine mist in 25 gram increments to obtain concentrations of 0.5% or 1.0% .After adding the surfactant solution, the soil was then saturated with distilled water and allowed to air dry for 48 hours. Once the soil was dried, a mortar and pestle were used to break up any soil aggregates that passed through a 2 mm sieve. |
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