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But the apple veberage that comes from apple juice concentrate has off flavor because of thermopHilic acidopHilic bacteria and its growth.

但因浓缩苹果清汁配制的苹果汁饮料中耐酸耐热菌生长繁殖和代谢的产物直接影响产品风味,已成为浓缩苹果清汁出口的难题。

Both of these and- product s produce an elevated-gap acidosis and are highly toxic.

这两种终产物都能导致AG增高型酸中毒,并具有较高的毒性。

The result indicates, when the lixivium of brewing mass has been diluted by 10 times and neutralized to be acidulous, take the liquor waiting for determining as the reference liquor, the ratio between the liquor and DNS is 1:2, determining at 610nm,not only the DNS reducing product has a biggish absorption , but ...

结果表明:当发酵糟醅浸出液稀释 10倍中和至微酸性,以待测液作参比,待测液和DNS的用量比为 1∶2时,在6 10nm处测定不仅DNS的还原产物有较大吸收值,而且还避开了发酵糟中干扰物质对吸光度的影响

Recognition of microbial components by TLRs initiates signal transduction pathways, which triggers expression of genes. These gene products control innate immune responses and further instruct deelopment of antigen-specific acquired immunity.

机体能通过TLRs识别病原体成分引发的信号转导途径能激发体内的基因表达,这些基因产物能控制机体固有免疫反应,并进一步指导后天抗原特异性的获得性免疫的发展。

The optimized structures and energies of the reactants, intermediates, transition states and products of two reaction channels (corresponding to syn-acraldehyde and anti-acraldehyde) in gas or in methanol solvent were obtained. The potential energy profiles reveal the processes of the trimethylamine-catalyzed Baylis-Hillman reaction between acraldehyde and formaldehyde in gas or in methanol solvent at the microscope level.

通过研究,获得了三种情况下两种反应通道(分别对应于顺式-和反式-丙烯醛)中涉及的反应物、产物、中间体、过渡态的优化结构及其能量,并由此得到了反应的势能面图,在电子微观层次上揭示了三甲胺催化的丙烯醛和甲醛的Baylis-Hillman反应的微观过程。

The reaction process in methanol solvent can be deduced from the computational results with CPCM solvent model and the supermolecular handling, namely the reaction involves four steps in the methanol solvent. The nucleophilic addition of trimethylamine to acraldehyde generates an enolate. Nucleophilic attack of the enolate on the aldehyde forms the carbon-carbon bond, followed by the proton-transfer process and the further elimination generating the product and liberating the trimethylamine catalyst.

对于CH3OH对反应体系的影响,可以综合考虑CPCM溶剂模型及超分子模型下的研究结果,即CH3OH溶剂中反应按四步进行,催化剂三甲胺首先与丙烯醛发生亲核加成,生成的两性离子中间体与甲醛发生类似于Aldol的醛醇缩合,形成碳-碳键,之后发生分子内质子转移,最后经E1cb消除得到产物,并释放催化剂三甲胺。

The structure of octadecyl acrylate were identified by elemental analysis, IR and (superscript 1)H NMR.

产物结构经元素分析,IR和(上标1)H NMR表徵。

The result showed that, when the content of polysilicone was 8%, polysilicone can uniformly disperse into acrylate resin.

产物是均一相的,当有机硅含量为10%时的聚合物性能最好。

In a second time acrylonitrile is grafted on to unsaturated lateral double bonds.

所得共聚物的性能与异相条件下接枝的产物完全不同。

Finally, Based on the whole research work, a new technology, named"ultimate recycle operation"was proposed. The main purpose of this technology is to obtain the maximum selectivity of acrylonitrile and it is of great importance on conservation of resources and environment protection.

最后,在全文研究工作的基础之上,本文提出一种"极限式循环操作"反应技术的设想,利用该反应技术能够最大限度地提高丙烯腈的选择性,降低深度氧化产物的生成,在节省资源和环境保护等方面均具有突出的应用意义。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力