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1)  layered drainage
层状排水
1.
Experimental research and application of new layered drainage porous concrete on the Tianwan Nuclear Power Plant;
新型层状排水多孔混凝土在田湾核电站中的试验研究与应用
2)  lamellar arrangement
层状排列
3)  present situation of drainage
排水现状
4)  trellis drainage
格状排水
5)  Band shaped prefabricated drain
带状排水
6)  drainage layer
排水层
1.
As landfill site working,biochemical process and seepage of leachate always affect and change drainage layer permeability.
垃圾填埋场运行过程中,渗滤液的渗流和生物化学作用,不断影响和改变着排水层的渗透性能。
2.
Using column tests,water quality character of leachate and permeability coefficient variation law when leachate passing through the drainage layer in landfill sites were studied,and genetic mechanism of mineral precipitation and its influence on permeability of drainage layer were analyzed.
利用土柱试验,研究了渗沥液渗流经过填埋场排水层的水质特征和渗透系数变化规律,分析了矿物质沉淀的生成机制及其对填埋场排水层渗透性的影响。
3.
By means of laboratory experiments,using eight kinds of granulometric composition sands and gravels as material of drainage layer, the effects of leachate water quality and its variation regulation on permeability behavior of drainage layer in waste sanitary landfill were discussed.
以室内模拟实验为技术手段,选用8种粒度成份的砂砾为排水层材料,研究了填埋场渗滤液水质及其变化规律对排水层渗透能力的影响,建立了反映排水层渗透性(k)与渗滤液水质(CODr)、排水层结构(avρgl。
补充资料:层状结构催化剂
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性质:在层状结构物中层与层之间引进有机或无机的基因,从而具有催化作用的催化剂。其优点是可通过控制层间距(如0.5~4.0nm),使反应物定向,以达到独特的反应物和产物选择性。层状结构材料可以用天然层状黏土或水滑石等改性,也可以用K2La2Ti3O10等起始层板材料分步交换制得。提高柱层状结构物的热稳定性和水热稳定性,目前还比较困难。

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