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However,the removal of soil noncrystalline aluminum with DCB soultioncaused an obvious decrease of soil SSA.3.The hydroxy aluminum in the interlayer of 1.4nm intergrade mineralhad an important negative effect on the cation exchange capacity ofsoil colloids.Its removal would cause a significant increase in CEC valuesof the soil colloids.4.Free aluminum was the major carrier of phosphate adsorption of soilcolloids.Particularly,the active aluminum had a decisive effect on thecapacity of phosphate adsorption of soil colliods.5.Addition to the effects of other soil constituents on soil surfaceproperties,it was thought that the effect of soil free aluminum,especially active aluminum on soil surface properties,deserved closeattention.

焦磷酸钠、草酸铵、DCB、柠檬酸钠和NaOH提取的土壤铝对提高土壤CECv、AEC、PZC和PZNC起重要作用，尤以活性铝的作用较大。2）用草酸铵处理除去铝后，土壤比表面积变化不大或略有增加；用DCB处理除去土壤铝后，土壤SSA明显降低。3）层间羟基铝对土壤胶体的阳离子交换量有显著负贡献，用柠檬酸钠将之除去后，土壤胶体的阳离子交换量明显增加。4）土壤胶体中的游离铝是土壤胶体吸附磷的主要载体，尤其是其中的活性铝，对土壤胶体的磷吸附能力起决定性作用。5）除其它土壤组分对土壤表面性质的影响外，土壤中的游离铝、尤其是活性铝对土壤有关表面性质的影响，值得引起特别的重视。

People are free, or not free, there is never a interim period.

人要么是自由的，要么是不自由的，从来就不存在过渡阶段。

The day that this country ceases to be free for irreligion, it will cease to be free for religion.

不信教的自由终止之日，也是信教自由毁灭之时。

The isometric surface of the free form surface is generated for NC machining of the negative or positive model of the free form surface.

通过求等距面的方法，本论文解决了数控加工中的阴阳模加工问题。

Kinsey Janus - Find free articles by expert author Kinsey Janus for republishing on your websites, blogs and free offline magazines.

金赛骏-找到免费文章作者金赛性学专家重新杰纳斯为您的网站，博客和免费离线杂志。

Harry Jonson - Find free articles by expert author Harry Jonson for republishing on your websites, blogs and free offline magazines.

哈里琼森-找到免费文章作者哈里琼森专家为重新在您的网站上，博客和免费离线杂志。

Keep sb or sth free from （29课） You can't keep yourselves free from anxieties like tramps.

你是不能够像约翰一样不受烦恼的侵扰的。

The trends of thought on new free-economy is the antagonistic thoughts to Keynesianism among modern western economic theories and it focuses on free theory and policy.

新自由主义经济思潮是当代西方经济学说中与凯恩斯主义相对立的、强调自由放任理论与政策的经济学思潮。

Stephen Kreutzer - Find free articles by expert author Stephen Kreutzer for republishing on your websites, blogs and free offline magazines.

斯蒂芬克勒策-找到免费文章的作者史蒂芬克勒策专家为重新在您的网站上，博客和免费离线杂志。

Boundary polynomial point interpolation mesh-free method and boundary radial point interpolation mesh-free method were presented, based on polynomial basis and radial basis respectively for transient eddy current analysis, and their interpolation shape functions satisfy the Kronecker delta function and the essential boundary conditions can be directly imposed on the boundary nodes. An example on analyzing transient eddy current of a square metal column was set to prove the validity of the proposed methods, and a comparison on accuracy between BPPIM and BRPIM was analyzed as well.

运用多项式点插值法和径向基点插值法构造形函数，推导了适合于工程电磁场瞬态涡流问题的多项式基点插值边界无单元方法和径向基点播值边界无单元方法，这两种方法的空间插值形函数满足Kronecker delta条件，从而强加边界条件可以直接施加在边界点上，以金属长方柱的瞬态涡流分析作为数值算例，证实了两种方法的正确性和有效性，并对两种基类的点插值法进行了精度分析和比较。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！