2) enrichment factor
富集因子
1.
Application of an enrichment factor in determining anthropogenical pollution ofheavy metal in topsoil;
攀枝花工矿区土壤重金属人为污染的富集因子分析
2.
Meanwhile,enrichment factors were calculated for the source identification.
对不同季节采集的兰州市街道尘埃样品,用X射线荧光法分析了其中41种元素的质量分数,并用富集因子法对数据进行分析。
3.
In addition, they studied the sources of atmospheric fallouts by using the enrichment factor and principal component analysis.
通过研究太原盆地大气干湿沉降中重金属元素的含量分布特征及年输入通量,讨论其对土壤中重金属元素累积的影响,同时采用富集因子法探讨降尘物质的来源。
3) enrichment factors
富集因子
1.
The thesis analyzes the concentration distribution characteristics of the elements in soil dust in Tianjin by comparing them with soil environmental standard and soil background value, and then studies the enrichment characteristics by enrichment factors, to demonstrate the sources of these elements and their changes.
通过与土壤标准和背景值的比较分析了天津市土壤风沙尘元素的质量分数分布特征,通过富集因子法分析了天津市风沙尘元素的富集特征,进而说明天津市风沙尘元素的来源及其变化。
2.
Enrichment factors of S,As,Se,Br,Pb in atmospheric aerosol at Lijiang which have close relation to human ac.
丽江气溶胶S、As、Se、Br和Pb等与人类活动有关的气溶胶元素的富集因子很高。
4) group batching factor
集批因子
1.
This paper provides the concepts of group batching factor, program type and bill of assignment, and incorporates the group batching between customer order and the manufacturing material in the enterprise, thus forms the group batching optimization of customer order, and obtains better results in application.
针对钢铁企业供应链中市场对产品的小批量、多样性需求与钢铁企业大批量生产的矛盾,提出了集批因子、计划种类和工作任务单的概念,把客户订单组批与企业内加工材料组批有机地结合起来,从而对客户订单进行组批优化,并在实际应用中取得了较好的效果。
补充资料：不变子集
不变子集
mvariant subset
不变子集汇加粕雌阴亡即肠以;H.即“明.oe邢脚助狱ec-，0]，群G的 G的子集H，它包含它的每个元素h在G中的所有共辘元(conj贝势te ekn笠幻t)，即所有形为g一’hg的元素.不变子半群(invanani sub一~·group)是一.压忍葱胜到厉价周落玉耳蕊胃.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条