英语翻译

题目

英语翻译
谁能帮我翻译下!奖励可以增加
Sampling sites were situated along a gradient of pollution going from the smelter to the North-East.All sites were covered by Scotch pine (Pinus silvestris L.).Samples were collected from three locations that were situated at intervals of approx.1,2 and 6 km from the smelter (further referred to as soils A,B,and C).The locations have a similar soil structure:sandy with approximately 2.5% of clay (Koopmans et al.,1993).Samples were taken from the upper 10 cm of the soil mineral layer (litter was removed).On either location four replicate plots were sampled.From each replicate 15 soil cores,4 cm in diameter and 10 cm depth were taken and then mixed and sieved (0.5 cm mesh).
Preparation of samples
After sieving,field moist soil from each plot was divided into subsamples of approx.250 g and each of them was placed in a 300 ml plastic jar.The samples were divided into four sets,each containing four samples.One set was treated with lead nitrate(1000 mg Pb

答案

采样站点位于了沿污染梯度去从精炼工对北部East.All 站点由刻痕杉木(Pinus silvestris L.) 盖了.样品从位于在间隔时间大约的三个地点被收集了.1,2 和6 公里从精炼工(进一步指土壤A 、B,和C) .地点有一个相似的土壤结...