The dependence of relative intensity and frequency of bands of aromatic ring on the atomic number of lanthanides indicates the presence of a double-double effect.

芳香环谱带的相对强度和频率对于镧系元素原子序数的依赖关系表明双-双效应的存在。

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The form of double colour effect transfer coating sofa leather, the base crust, the processing technology of double colour effect film and the influence factors in processing were discussed in detail.

论述了干法贴膜双色效应沙发革的构成，底基坯革制作，双色效应膜的加工技术以及生产中的影响因素等。

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The paper introduced the effect and principium of Sagtital focusing double crystal monochromator , and described measurement for positon of facula from Sagtital focusing double crystal monochromator.

简要介绍了弧矢聚焦双晶单色器的作用及基本原理，描述了离线测量弧矢聚焦双晶单色器出射光斑位置的方法。

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By law, REITs are required to pay out at least 90% of income as dividends, eliminating the double-tax effect on dividends.

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The heavier weight on STEM helps minimize the effect of a double-counted STEM worker in a tech company.

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Those policies had the unintended effect of prolonging double-digit unemployment, principally by making it more expensive and difficult for employers to hire people.

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