期刊问答网 论文发表 期刊发表 期刊问答
  • 回答数

    3

  • 浏览数

    224

gwh7633
首页 > 期刊问答网 > 期刊问答 > 能源化工论文英文

3个回答 默认排序1
  • 默认排序
  • 按时间排序

狮子王朋友

已采纳
干德-化学分析的统计摘要位置样本载于表一。浓度重金属显示一系列到同一象限中的浓度,在相同的象限内,采样点派广泛地区上空—一些接近显示浓度高及其它污染的来源在该同一象限而远离源显示—ing低浓度。平均浓度水平的se-lected重金属含量(锰,铜,镍,钴、铅、镉、锌、铬,铝,和铁)在四个方向象限内,图2中所示。初步定性观察平均浓度再—sults为每个象限指示thatNi和Fewere中较高,西南象限,铅,铜,钴,高北-andCdwere西象限;东南象限;中较高的锌andMnwere和铝、铬是东北的象限中较高。莫是低,约等于整个浓度,研究领域。因为重金属的平均浓度出现在大多数在进行调查的站点的单向分析不等方差(方差分析)进行测试,signi吗?与不同,不能—heavymetalswith尊重的encesbetweenmean浓度在取样象限。测试的结果显示,signi吗?不能统计的区别(α的级别=10),找到铅(P=082)和铜(P=081)西北地区象限。所有其他差异,平均浓度的重金属被发现不是统计signi吗?不能由象限取样使用从水泥的距离范围内植物。这方面缺乏统计signi吗?cance被认为是由于在中吗?水泥行业的运作的点数,全市Fuhais的本港的空气质素。铜、铅是signi吗?-cantly相关,他们考虑到的西北地区与重traf有直接关系呢?c模式的货运及汽车运输生和吗?nished材料出水泥厂。

能源化工论文英文

153 评论(8)

miga0321

你看看这个可以吗是一本书《Thermo-fluid dynamics of two-phase flow 》作者:M Ishii,Takashi Hibiki这个网址可以看全书内容 但是不可以复制粘贴-CN&lr=&id=qMBqJSSdusAC&oi=fnd&pg=PR13&dq=The+drag+force+in+two-fluid+&ots=OVQpv-H4xH&sig=hdXVFwRSSvwCa15TIAtcikYV0vo#v=onepage&q=The%20drag%20force%20in%20two-fluid&f=false
312 评论(13)

夜阑听风雨

On Chinese Ecological Agriculture and Industrialized Agricultural OperationsAbstractEco-agricultural industrialization which is available to increase efficiency and income is the general orientation of farm development during the new We should establish compatible industrialized main structure and industrial organization structure,advance agricultural industrialization to manage energetically,advocate the idea of eco-agricultural industrialization and pollution reduction to stride new step of eco-agricultural industrialization Eco-agricultural industrialization is comprehensive agriculture that changes the traditional single planting structure,combines farming with aquaculture and processing industry,forms ab all-sided development in farming, forestry, live stock raising, sidelines and fishery to increase output,economic benefit and Agriculture is not only prerequisite condition for human surviving and developing if taken sutable development way,but also provides new energy,chemical material and changes our environment with offering ideal resort for sightseeing, entertainment and relaxation and eventually to become veritable primary Eco-agricultural industrialization is energy-saving agriculture which takes advantage of the rule of nature to controls insect pest and disease,the rule of multilevel utilization ability to raise solar cell conversion efficiency so that pesticide and fertilizer dosage reduce as well as the cost of agricultural Eco-agricultural industrialization is sustainable agricultural and worthy of popularization for it improves the rate of resources uses,avoids abusing and wasting Key words:Eco-agricultural industrialization,New resource, Sustainable argiculture
323 评论(11)

相关问答