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Dr Sneddon comments, "Sheep wool evidently has potential as a bio-indicator of naturally occurring heavy metal concentrations in upland areas, which have previously not been assessed in this way".
Sneddon博士评论认为：“羊毛显然可以作为丘陵地区重金属污染的生物指示剂，而以前这一特点一直都没有被注意到。”
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