极性的
- 与 极性的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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With the help of dynamic mechanical thermal analysis, differential thermal analysis, analysis of curing behaviors and swelling test, the change of structure during the vulcanization of ebonite was analyzed. It is found that the chemical cross-linking in the ebonite trended to descend with degree of vulcanization, while the modification effects of polar groupings on the carbon backbone gradually increased, which dominated its physical and mechanical properties.
通过考察硫化时间对于硬质橡胶结构与性能的影响,结合DMTA、DSC、硫化特性分析、溶胀分析等方法,分析了硬质橡胶的硫化过程中结构的变化,认为在硫化过程中,随着硫化的进行,硬质橡胶中的化学交联作用有下降趋势,极性基团对于碳骨架的改性作用逐渐增加,并对硬质橡胶的物理机械性能起主要决定作用。
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The results show that, after treated with microwave radiation, the surface free energy of the powder is enhanced from 39.6mJm^(-2) to 41.8mJm^(-2), This is mainly caused by the rearrangement of electric charges on the grain crystal surface, and this phenomenon is coincident with the theory of electron transition caused by energy band splitting of the grain crystal surface.
测定结果显示微波辐射后硫酸钙粉末的表面自由能得到提高,从39.6mJm^(-2)增加到41.8mJm^(-2),其主要原因是使硫酸钙表面能的极性成分得到了较大的提高。这一结果归于微波幅射引起晶粒表面的电荷重排,与晶粒表面能带分裂引起的电子跃迁理论是相吻合的。
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Polarity,or action and reaction,we meet in every parto nature;in darkness and light;in heat and cold;in the ebband low o waters;in male and emale;in the inspirationand expkation o plants and animals;in the equation oquantity and quality in the luids o the anima1body;in thesystole and diastole20 the heart;in the undulations o luids-arjld--o sound:in the centriuga1and centripeta1gravity3;inelectricity,galvanism,and chemica1ainity.
两极性或作用与反作用在自然界中随处可见:黑暗与光明、炎热与寒冷、潮落与潮涨、雄性与性、动植物的吸气与呼气、动物体内的体液数量与质量的均衡、心脏的收缩与舒张、液体的波动和声音的起伏、离心力与向心力;此外在电荷、电流和化学的亲和性上也不难发现这点。
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3Glass capillary gas chromatography is used in the analysis of n-paraffin distribution of the diesel,and according to the results of the cold filter plugging point test ,it is conclude that the impressibility of DFI to fuel is not only connected with the alkyl side chain and the polarity group of medicine oneself ,but also the n -paraffin distribution of the diesel ,the component ,technology and directions for producing of fuel and so on.
该方法具有合成线路短、产率高、成本低的特点;(3)通过使用毛细管气相色谱法测定柴油中直链烷烃的组成与含量,及柴油冷滤点(Cold filter plugging point 简称CFPP)的测定得出结论,DFI 对柴油的感受性不仅与药剂本身的烷基侧链、极性基团有关,也与柴油的直链烷烃的含量、馏分组成、加工工艺等有关。
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Just pay attention to that the gains for plus and minus signals are the same, and the area of the signal around zero. I checked the LM35, the accuracy is good, but does it need 2 diodes in series to measure the temperature lower than -20 degree C? You could consider TC1047A that I used before, it doesn't need any other component, and it can go directly to A/D.
我用4051是想将AD620的+/-输出信号不通过绝对值电路,而是接一个反相电路,反相前后的信号通过4051和极性判断电路有选择的将信号的绝对值电压再送入AD,用这个方法也能处理温度传感器LM35的输出信号,我想这是个比较安全的方法了吧!
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The chemical constituents of Huperzia serrata Trev. are mainly flavonoids, triterpenoids and alkaloids. In order to get further comprehension of lycopodium alkaloids, we studied the low-polar section of the alkaloids extraction of Huperzia serrata and 19 alkaloids were isolated by ways of silica gel, RP-18 and Sephadex LH-20 etc. All of their structures, including five new compounds and two known ones that were firstly found from this genus, were elucidated with the help of Mass, IR, NMR spectra and so on. The five new alkaloids (HS-07, HS-08, HS-09, HS-10 and HS-11) are belonged to lycopodine class. The other two ones that were new to this genus (HS-18 and HS-19) are belonged to miscellaneous group.
蛇足石杉的主要化学成分为黄酮,三萜和生物碱,为进一步了解该植物的生物碱成分,我们研究了蛇足石杉氯仿总碱低极性部位的生物碱成分,运用正相硅胶、反相RP-18、凝胶LH-20等方法分得了19个生物碱,并通过质谱、红外、核磁共振等波谱鉴定了它们的结构,其中5个为新化合物,2个为首次从该属植物中分离得到的化合物,所分得的新化合物:HS-07、HS-08、HS-09、HS-10和HS-11均为lycopodine类石松生物碱,首次从该属植物中分得的化合物为miscellaneous类:HS-18和HS-19。
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A basic review on dielectric nonlinearity and electric tunable mechanism was performed in view of thermodynamics, ferroelectric domain, polar nanoregion, field induced phase transition, grain boundary layer and AC dielectric nonlinearity. The dielectric nonlinearity phenomena in barium stannate titanate ceramics were studied and the field dependences of dielectric constant and loss tangent were showed.
关于低温介电弛豫行为与极性微区关系的讨论涉及到了弛豫铁电体与扩散相变铁电体之间的相容关系,作者认为所有的扩散相变铁电体都应该是弛豫铁电体或潜在的弛豫铁电体,它们的区别仅在于能够观测到介电弛豫现象的测试频率范围不同。
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The analysis methods for the determination of micro or trace elements in high moisture jellyfish were developed. The fatty acid compositions in difderent parts of fresh jellyfish were determined by GC/MS method. Thirty-five fatty acids were identified, and most of them were found in R. esculentum jellyfish for the first time. Especially, two unusual very long chain polyunsaturated fatty acids that were never detected in the other jellyfish also were determined. Amino acids were abundant in R. esculentum jellyfish, especially containing sulfur amino acids, and could be supplied for human diet. The polysaccharide in umbrella part of jellyfish was composed of glucose, galactose and uronic acid, and its molecular weight was 40,000, but the polysaccharide of the oral arms part consisted of glucose, mannose and glycuronic acid, and its molecular weight was 43,000. Above-mentioned data were never reported. The ethanolic extract of oral arms part of jellyfish were extracted by different polar solvents (petroleum ether, acetic ether, n-butanol), and antibacterial activity was tested to these extracts by four species of terricolous pathogenic bacilli and three species of botanic pathogenic fungi. The result demonstrated that the petroleum ether extract had certain bactericidal activity for two species of pathogenic bacilli, and n-butanol extract had certain inhibited activity on apple rot pathogenic fungus.
建立了 高含水量的海蜇产品中微量、痕量元素成分测定的分析方法;采用 GC/MS 方法测定了新鲜海蜇不同部位的脂肪酸组成,共鉴定出 35 种脂肪酸,其中大多数脂肪酸是首次在海蜇中被检测到,尤其是两种不常见的 C24:5 超长链多不饱和脂肪酸的分析和鉴定在其它水母种属中也从未见报道;海蜇三个部位中氨基酸成分齐全,含量丰富,含硫氨基酸含量较高,可与其它食物蛋白质的氨基酸互补;其中海蜇皮多糖是由葡萄糖、半乳糖和糖醛酸组成,分子量为 40,000,海蜇头多糖是由葡萄糖、甘露糖和糖醛酸组成,分子量为 43,000,以上工作均未见报道;利用石油醚、乙酸乙酯、正丁醇三种不同极性溶剂分别萃取海蜇头乙醇浸提物,用纸碟法和生长速率法分别对四株陆源病原菌和三株植物病原真菌进行了抑菌实验,结果表明海蜇头石油醚提取物和正丁醇提取物具有一定的抑菌活性。
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The analysis methods for the determination of microor trace elements in high moisture jellyfish were developed. The fatty acid compositions indifderent parts of fresh jellyfish were determined by GC/MS method. Thirty-five fatty acids wereidentified, and most of them were found in R. esculentum jellyfish for the first time. Especially,two unusual very long chain polyunsaturated fatty acids that were never detected in the otherjellyfish also were determined. Amino acids were abundant in R. esculentum jellyfish, especiallycontaining sulfur amino acids, and could be supplied for human diet. The polysaccharide inumbrella part of jellyfish was composed of glucose, galactose and uronic acid, and its molecularweight was 40,000, but the polysaccharide of the oral arms part consisted of glucose, mannose andglycuronic acid, and its molecular weight was 43,000. Above-mentioned data were never reported.The ethanolic extract of oral arms part of jellyfish were extracted by different polar solvents(petroleum ether, acetic ether, n-butanol), and antibacterial activity was tested to these extracts byfour species of terricolous pathogenic bacilli and three species of botanic pathogenic fungi. Theresult demonstrated that the petroleum ether extract had certain bactericidal activity for twospecies of pathogenic bacilli, and n-butanol extract had certain inhibited activity on apple rotpathogenic fungus.
建立了高含水量的海蜇产品中微量、痕量元素成分测定的分析方法;采用 GC/MS 方法测定了新鲜海蜇不同部位的脂肪酸组成,共鉴定出 35 种脂肪酸,其中大多数脂肪酸是首次在海蜇中被检测到,尤其是两种不常见的 C24:5 超长链多不饱和脂肪酸的分析和鉴定在其它水母种属中也从未见报道;海蜇三个部位中氨基酸成分齐全,含量丰富,含硫氨基酸含量较高,可与其它食物蛋白质的氨基酸互补;其中海蜇皮多糖是由葡萄糖、半乳糖和糖醛酸组成,分子量为 40,000,海蜇头多糖是由葡萄糖、甘露糖和糖醛酸组成,分子量为 43,000,以上工作均未见报道;利用石油醚、乙酸乙酯、正丁醇三种不同极性溶剂分别萃取海蜇头乙醇浸提物,用纸碟法和生长速率法分别对四株陆源病原菌和三株植物病原真菌进行了抑菌实验,结果表明海蜇头石油醚提取物和正丁醇提取物具有一定的抑菌活性。
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Thus, what the radical secular theologians bring to people is the deep reconsideration and let them seek again for the ultimacy and sanctity on the ruin of the "Death-of-God" theology, though they do not find a proper approach to solve the crisis of religious belief, and afford a viable mode for the future of belief.
因此,虽然激进世俗神学家们并未指出一条解决宗教信仰危机的可行道路,也没有为宗教的未来找到一个适当的形式,但它带给人们的是深入地反思,并使人们在"上帝之死"神学的废墟上重新寻求信仰的终极性和神圣性。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。