the result of the infrared spectrum anlysis showed that the phenolic hydroxyl group reacted with the epoxy group and the condensation reaction was occurred between the methyl groups of phenolic resin.

and then the phenolic hydroxyl group protected β-amino alcohols reacted with ferrocene chloride and then cyclized forming the oxazolines.

然后酚羟基保护后的β-氨基醇与二茂铁甲酰氯反应，经过关环形成嗯唑啉。

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in order to introduce the phenolic hydroxyl group, we designed four salicylaldehyde schiff base ligands, it indicated that this class of systems achieved the best catalytic effect.

为引入酚羟基，本文设计合成了四种水杨醛席夫碱配体，以这些配体构筑的催化体系催化模板反应，均能取得中等偏上的产率，是催化效果最好的一类配体。

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the alkylation of phenolic hydroxyl group in berbamine

小檗胺酚羟基的烷基化

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organic antimony compounds ⅰ. the action of antimonous acid on organic compounds containing phenolic hydroxyl group

有机锑化合物Ⅰ.含有酚型羟基团的有机结构和亚锑酸的作用

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it shows that the carbon black which contains higher phenolic hydroxyl group and quinonyl group on its surface has better dispersing capability.

研究发现：表面的酚羟基以及醌基含量高的炭黑在莰烯中的分散性能较好。

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this study utilizes the supermolecular feature of lignin and modifies it. the surface groups of modified lignin action macromolecule protein, were removed them as flocculent precipitate thereby to increase non-biological stability of beer.

利用木素的超分子特性，并通过改性而使其表面基团与高分子蛋白质作用，进而将其絮凝沉淀除去，从而提高啤酒的非生物稳定性。

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cmc is a product of biological degradation, no-toxicity, salt-resistance, regeneration and inexpensive.

羧甲基纤维素是一类水溶性好，能够生物降解、无毒性、抗盐性强、可再生且便宜易得的化工产品。

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the study of biological degradation and soil remediation technology to the petroleum pollutants in typical region has become focus in the domestic and international environment, biological field.

石油类污染物在典型油区的生物降解规律和土壤修复技术的研究已成为国内外环境、生物学领域的热点。

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meanwhile, fully and systematically expounded the specific contents and quantitative indexes of physical degradation, chemical degradation and biological degradation of eroded soils.

系统全面地论述了侵蚀土壤物理退化、化学退化和生物退化的具体内容和定量指标。

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the garlic residues were treated by biological degradation and physical method. a series of new products, such as compound seasoning and health vinegar etc.

通过对蒜渣进行生物降解和物理方法处理，研制出系列新产品如上合蒜香调味料、蒜香苹果醋等。

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the system's non-biological and biological degradation mechanism for organic pollutants and nutrient elements was revealed through the simulation of integrated vertical flow infiltration system;

本研究通过对复合垂直流渗滤系统的模拟揭示了该系统非生物机制与生物机制对有机污染物、营养元素的降解效果。

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in this paper the biological degradation technology for water hyacinth lignocelluloses and its effect on the anaerobic fermentation for biogas were studied.

本文开展了水葫芦木质纤维素生物预处理技术的研究，并研究其处理对厌氧发酵产沼气的影响，探求水葫芦高效产沼气方法。

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generally, the removal pathways of antibiotics in the activated sludge process include biological degradation, adsorption, hydrolysis and volatile.

一般认为，抗生素在活性污泥上的去除途径主要包括：生物降解、吸附、水解和挥发四种途径。

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membrane bio-reactor was a kind of new high efficient wastewater treatment and reuse craftwork which combined biological degradation with membrane separation processes.

膜生物反应器（MBR）是将生物降解作用与膜的高效分离技术结合而成的一种新型的高效污水处理与回用工艺。

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in this paper, a fixed biofilm snd system was studied, and also the properties of biological degradation reaction rate of nitrogen removal.

本文以固定生物膜SND反应器为研究对象，着重考察生物脱氮降解反应速率的特性。

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in the case of natural fibers biological degradation will occur when the fiber is retained with the sludge in the treatment plant.

就天然纤维而论，当纤维附在处理站的污泥上时，可能发生生物降解。

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an ideal gene transport system should have high gene transfection rate, favourable target and biocompatibility, fine stability and biological degradation.

基因转运需要合适的载体，理想的基因转运系统，应具有较高的基因转染效率、良好的靶向性和生物相容性、较高的稳定性及生物可降解性。

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the comprehensive and systematic study of light and biological degradation properties and assessment method on snack box with new materials was first made in china.

在国内首次对新型快餐饭盒的光、生物降解性能及评价方法进行了比较全面、系统、深入的研究。

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there are two methods to degrade the proanthocyanidins polymer into oligomer, chemical degradation and biological degradation.

多聚体原花色素降解为低聚体有化学降解和生物降解两种方法。

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the chitosan degradation methods taken in the production practice are mainly the following three categories: physical, chemical, biological degradation methods.

生产实践中采用的壳聚糖降解方法主要有以下三种：生物降解法、物理法和化学法。

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