The results show that butyltins content in most of the surface water samples is under the limit of the detection; five out of ten sediment samples are measured detectable butyltins.
对太湖表层水、沉积物和水生生物样品的丁基锡污染物进行了研究。
The metals distribution of Dagu canal and its tributaries in surface water, porewater and sediment have been studied.
本文研究和探讨了大沽排污河及其支流的沉积物上覆水、孔隙水以及沉积物中金属的沿程分布特征。
The water surface level, velocity field and sediment concentration field of gravel sand bed and sand bed reach on Jianjiang river were refined simulated.
细致地模拟了荆江卵石夹沙河床及沙质河床浅滩河段的水面线、流速场、含沙量浓度场及河床变形。
The spatial distribution of the concentrations of COD in water and sediment of surface layer shows a decreasing trend from the northwest and middle waters to the estuary of the bay.
海水与表层沉积物COD含量平面分布总的呈西北部水域和湾中部水域向湾口降低的趋势。
After soaking, most of the sand can and the car paint from, then wash with water, can avoid sediment scratch the surface dangerous.
经过浸泡，大部分的沙土可以与车漆脱离，再用水冲洗，可以避免泥沙划伤漆面的危险。
Forest litter has considerable eco-hydrological effects in retarding surface runoff, trapping sediment, and equilibrating soil water and heat status.
森林凋落物具有阻滞径流、拦截泥沙和均衡土壤水热状况等功效。
Forest litter has considerable eco-hydrological effects in retarding surface runoff, trapping sediment, and equilibrating soil water and heat status.
森林凋落物具有阻滞径流、拦截泥沙和均衡土壤水热状况等功效。
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