查询词典 by contrast

Impact on the market, not price, but product quality and price contrast formed by contrast, as well as support by the price of the investment space.

对市场的影响，而不是价格，而是产品质量和价格的对比所形成的反差，以及支持价格的投资空间。

Two representative compounds have been determined by X-ray crystallography. The best ratio of reactants, the adequate reaction temperature and solvent have been found by contrast experiments.4. The better photoreaction conditions and irridation times have been confirmed through the different photoreaction results. It is the first time that fifty quinazoline derivatives with biological activity and four photooxidation products with urea functional groups have been obtained by photochemistry method. Two representative compounds, quinazoline derivatives and photooxidation products, have been determined by X-ray crystallography, respectively.

通过实验对比我们找到了较佳的反应物的投料比、反应温度和反应所用的溶剂。4、根据不同条件下的光反应结果，确定了硫脲衍生物的相对较好的光反应条件和光照时间，首次利用光化学手段成功得到50个具有生物活性的喹唑啉衍生物和4个具有脲基官能团的光氧化的产物，测定了两个具有代表性的喹唑啉和光氧化的产物的晶体结构。

Assulta and the induction of GST activity by nicotine and capsicine in H. assulta provided partial supports for the hypothesis that diet breadth was governed by detoxification abilities. The results also indicated that two sibling species had different strategies of adaptation to toxic substances: H. assulta saves expenditure of nutrients and energy by restricting their countermeasures to a few potentially toxic compounds. H. armigera, by contrast, must be prepared to counter a wider range of potential toxins. 5. Compared with parental species, hybrids of reciprocal hybridization had significant difference in feeding preference for hot pepper.

结果显示，广食性的棉铃虫在中肠羧酸酯酶和谷胱甘肽-S-转移酶活性方面高于寡食性的烟青虫，但烟青虫谷胱甘肽-S-转移酶活性可以被寄主植物内的烟碱和辣椒素所诱导，表明解毒酶活性在一定程度上影响着植食性昆虫的食性广度；同时也暗示着二近缘种对有毒的次生物质采取不同的适应策略：烟青虫有选择地对付种类较少的植物次生物质以减轻营养和能量的消耗；棉铃虫则必须对付存在于其寄主植物内的种类繁多的有毒次生物质。

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作：1合成了三种可进行光二聚反应的光敏小分子单体，LPUV 辐照制作了光控取向膜；用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应，发现小分子的光反应程度可达到50%以上，至少比光敏高分子高出5倍；薄膜的偏振红外光谱证实，经过LPUV 辐照后薄膜出现了明显的各向异性；将小分子光控取向膜制成液晶器件，在偏光显微镜下观察看到均匀一致的液晶取向；并且热稳定性达到100℃左右，接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜；采用接触角的方法监测自组装反应的动力学过程；紫外-可见光谱证实了自组装单层膜在石英基板表面形成；自组装单层膜经LPUV 辐照后能诱导液晶均匀取向，而且热稳定性可达130℃，热稳定性进一步提高。3合成了含有光敏双键的双季铵盐，在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜，紫外-可见光谱证实这是一个逐层均匀的沉积；在LPUV 照射下，自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应，形成取向膜，用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平；实验证明用自组装多层膜制成的液晶器件亮暗态均匀，静态对比度约为100，达到实用化器件的水平。

We conclude that KB-R7843 has protective effects on contrast media-induced nephrotoxicity. The protective role of KB-R7943 may be related to its positive effects on renal hemadynamics through inhibiting the increase of ET-1 and TXA2 induced by contrast media in the environment of hypercholesterolemia and its cytoprotective influence on renal cells.

据此推导：（1）KB-R7943对高胆固醇血症环境下造影剂注射所致的肾损害有保护作用；（2）KB-R7943对造影剂肾损害的保护作用可能与其阻止高胆固醇血症环境下造影剂注射所致的肾皮质ET-1、TXA2浓度的上升从而阻止高胆固醇血症环境下注射造影剂所致的肾血流动力学的紊乱有关以及其对肾脏细胞的细胞保护作用有关。

While its suburbs keep growing, the population of Paris, by contrast, is expected to drop by 3% by 2030 according to INSEE, the official statistics body.

反观巴黎的，它的郊区一直在扩展，人口却在不断减少，根据法国中央统计机构INSEE的数据，至2030年，巴黎人口数量将会降低3%。

DST showed that the pretreatment with dexamethasone can not repress the total number of CRF immunoreactive neurons in the rat model induced by CUMS, by contrast with a normal repression in the number of CRF neurons in rat induced by acute stress. In brief, the rat model induced by CUMS represented decreased body weight, obvious depression-like behavior, hyperactivity in HPA axis and nonsuppression on the DST, which fits the criteria and neurobiological feature of depression.

简而言之，CUMS诱导的大鼠模型有典型的抑郁症样行为和表现、HPA轴活性升高、DST的失抑制，符合抑郁症模型的行为学标准和主要神经生物学特征，是抑郁症稳定可靠的模型，也是研究应激诱导的糖皮质激素升高所带来的神经生物学效应的良好模型。

However, the piercing flavour of LuHsun"s essays made his essays subject to censure by many critics. And LuHsun himself was often mistaken and refuted by the compromising ones because of his sharping critical attitude toward one vital part but ignoring the other aspects of the objects. Especially those readers who never read the articles by LuHsun"s counterparts would think him too harsh, but the value of LuHsuns essays could be uncovered sufficienty by contrast to those by the counterparts.

鲁迅杂文深刻犀利的文风也多受指责；其对生活、社会问题看法超出一般人的理解范围而受误解；其只抓要害、不及其余以及连类而及，对具象的类型化批评的论辩方式为中庸、和为贵的受众所指责，尤其是难以见到鲁迅论辩对手文章的读者，更会留下刻薄的印象，因为鲁迅的现实性极强的杂文与对立之文共存才显现它的价值。

Allyl starch was prepared by etherification pretreatment of introducing allyl groups onto starch, and then AS-g-PMA was synthesized through graft copolymerization between allyl starch and methyl acrylate. The adhesion to fibers, sizing film and sizing performance of the blended size composed of AS-g-PMA and PVA-1799 were investigated. And the possibility by using AS-g-PMA to substitute PVA component was studied by contrast experiments.

摘〓要：通过烯丙基化变性对淀粉进行预处理制取烯丙基淀粉，再与丙烯酸甲酯进行接枝共聚合成接枝淀粉，文章探索了这种接枝淀粉与PVA1799混合浆的黏附、浆膜及浆纱性能，与目标配方进行比较，揭示出AS-g-PMA取代PVA的可能性。

The nature of all other creatures is defined and restricted within laws which We have laid down; you, by contrast, impeded by no such restrictions, may, by your own free will, to whose custody We have assigned you, trace for yourself the lineaments of your own nature.

亚当啊，我们不能给你固定的地位，固有的面貌和任何一个特殊的职守，以便你按照你的之源，按照你的意见，取得和占有完全出于你自愿的那种地位，那种面貌和那些职守。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷