The enrichment factor of mainly absorbent element is also high under dust and sand weather conditions.
亲地壳元素中的主成分元素在有沙尘天气时，其富集因子也偏高。
2
This paper studied with main controlling factors of the migration enrichmentof Cu element in groundwater and its distributing law.
研究了地下水中铜元素迁移富集的主要控制因素及其分布规律。
3
The existing state of trace element in coal and variation of operation conditions have great effects on the enrichmentof trace element in fly ash and bottom slag.