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In this section, we focused on the investigation of the condensation, Michael reaction of different aromatic aldehyde with different aryl substituted ketones under solvent-free and PTC conditions, obtained polysubstitutedcyclohexanol derivatives in mordent yield when using TBAB as the catalyst.

通过实验发现，TBAB对该反应具有良好的促进作用，使在液相中需十几个小时甚至几十个小时才能完成的反应，在无溶剂条件下几分钟就可完成，并且使液相中两步完成的反应，而在无溶剂条件下一步就可完成，且产率优良。

Eight new substituted aminomethyl derivatives were prepared by Amine exchange reaction of the Mannich base of sinomenine with aromatic amines or morpholine.

2由Mannich碱与取代芳胺及吗啉通过胺交换反应合成了8个未见文献报道的取代胺甲基化合物。

Oxidation of 1-nitronaphthalene yields 3-nitrophthalic acid while oxidation of α-naphthylamine yields phthalic acid, Explain why different rings in the substituted naphthalenes are oxidized.

答：1-硝基萘氧化成3-硝基酞酸，a-萘胺氧化成酞酸。解释萘氧化取代发生在不同环上的原因解释：氧化电子云密度高的。

Nevertheless, if I wished to give some sort of indication by choosing one or two "names," and by recalling those authors in whose discourses this occurrence has most nearly maintained its most radical formulation, I would probably cite the Nietzschean critique of metaphysics, the critique of the concepts of being and truth, for which were substituted the concepts of play, interpretation, and sign; the Freudian critique of self-presence, that is, the critique of consciousness, of the subject, of self-identity and of self-proximity or self-possession; and, more radically, the Heideggerean destruction of metaphysics, of onto-theology, of the determination of being as presence.

假如，我们无论如何要以直陈的名义选择一些"特殊的名字"，提及一些最能表征这种发生过程之极端形式的作者的话，那无疑地就得引用尼采对形而上学和存在及真理概念的批判，因为这些概念被游戏、解释、和符号的概念(即无在场真理的符号概念)所代替；就得引用弗洛伊德对自我呈现的批判，也就是说对意识、主体、自我一致性、自我临近、自我同性的批判：更激进一点，就得引用海德格尔对形而上学、存在论神学、作为在场的存在的规定性的解构。

The phase transition temperature increases and the transition ranges tends to be broad when PNIPA brushes were substituted with P or P(NIPA-co-NVP) brushes obtained by the copolymerization of NIPA with AA and NVP, respectively. However, the phase transition is not obvious if adding excessive hydrophilic comonomer.

结果表明，纯PNIPA刷的相变温度在29℃~33℃之间，通过共聚所得的单一P或P(NIPA-co-NVP)刷均使相转变温度提高，转变区域拓宽，当亲水性共单体的量过多时会导致相变过程不明显。

The hydroxy and nitro-substituted coumarins were able to inhibite hemolysis of human red blood cells and damage of DNA induced by AAPH. It reveals that these compounds are effective antioxidants. Some coumarins have cytostatic and cytotoxic activity for HL-60 cell lines. In general, their effects were weakened when coumarins own nitro group.

含有羟基和硝基的香豆素衍生物对自由基诱导的人血红细胞溶血有一定的抑制作用，且对AAPH诱导的DNA损伤有不同程度的保护作用，部分香豆素衍生物对人早幼粒白血病细胞（HL-60）的增殖表现出一定的抑制作用。

The results of the experiments show that substituted aryl ethers that containing nitro group (-NO2) are easy to take place nucleophilic substitution in the alkaline medium and then aryl etherbond is cleaved.

实验结果表明，含-NO_2的取代芳基醚，在碱性溶液中，易发生亲核取代反应，从而使芳醚键断裂。

We substituted a nonmagnetic material, silicon, and still the balance was very strange.

由于一开始烟灰是下落的，故现在烟灰仍然下落，不可能升起。

In addition, nonyl phenol ethoxylate can be substituted with more biodegradable surfactants.

在此外，壬基酚聚氧乙烯醚可作替代更多的可生物降解的表面活性剂。

The first and second derivatives of the coordinates of a cam profile are calculated using numerical differentiation method,and substituted with curvature radius formulas in calculus,thus obtaining its curvature radius.

应用数值微分法计算凸轮廓线坐标的一、二阶导数，代入微积分学中曲率半径公式，即得凸轮廓线的曲率半径。

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！