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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A method of killing flying insects which method comprises spraying into the air in which insects are flying liquid droplets of an insecticidal composition, a unipolar charge being imparted to the said liquid droplets by double layer charging and charge separation during spraying, the unipolar charge being at a level such that the said droplets have a charge to mass ratio of at least +/-1x10-4 C/kg.
一种杀死飞虫的方法,该方法包括:向具有飞虫的空气中喷射杀虫剂组合物液滴,在喷射过程中通过双层充电以及电荷分离而向所述液滴施加单一极性的电荷,单一极性的电荷处于使所述液滴具有至少+/-1×10-4C/kg的电荷/质量比的水平。
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The results show that there is excellent linear relationship between solute-related parameters and retention indexes for the saturated hydrocarbon, olefine and diene compounds on different polar chromatographic stationary phases.
结果表明:烷烃、烯烃、二烯烃类化合物在不同极性的色谱柱上的色谱保留与其分子结构描述参数之间具有较好的线性关系,烃类化合物在不同极性固定相上的保留主要与溶质分子的MR有关,即与溶质分子的色散力有关。
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The antimicrobial test and researched was done on wide distillation of different solvents on Terpenoid, polarity separation of ethanol distillable substance, thin layer chromatography of different polarities and distillation of amylase. The results showed that the active substance distilled by 95% ethanol and V methanol: toluene=3:1 had stronger antimicrobial activity on Agaricus blazei Murrill. The antimicrobial activity of ethyl acetate was stronger than wide distilling substance with ethanol, but the water part has not antimicrobial effect. Two straps of ethyl acetate phase(Rf0.57、Rf0.63)(0.1g/ml)had stronger antimicrobial activity on Agaricus blazei Murrill, the antimicrobial zone on Pseudomonas was 19.3mm. The bacteriostatic activity of chromatography strap of water phase was rather weaker, the water solution (0.5g/g) of amylase had better effect on pathogenic fungus of Agaricus blazei Murrill, its antimicrobial zone on Aspergillus niger, Citrinin, Trichoderma viride were 10.8 mm, 7.9 mm, 5.3 mm.
通过对日本凹顶藻以不同溶剂的粗提、乙醇提取物的极性分离、不同极性的薄层层析和多糖的提取,进行抗菌试验的研究,发现95%乙醇和V甲醇:甲苯为3∶1的提取的活性物质具有较强的抗姬松茸的病原细菌活性,乙酸乙酯相对病原细菌的抑菌强于乙醇的粗提物,而水相基本无抑菌效果,乙酸乙酯相的两个带(Rf0.57、Rf0.63)浓度为0.1g/ml具有较强抗姬松茸病原细菌的活性,对假单孢杆菌抑菌圈达到19.3mm,水相层析带的抑菌活性较弱,多糖的粗提物配成0.25g/g的水溶液对姬松茸病原真菌有较好的抑菌效果对黑曲霉、桔青霉和绿色木霉的抑菌圈分别达到10.8 mm、7.9 mm、5.3 mm。
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Among the five oily ingredients tested, C16~18 fatty alcohol can well facilitate the formation of liquid crystal; polar materials PPG-15 stearyl ether and stearic acid are not favorable for the formation of liquid crystal, while non-polar material white oil shows no effect on the formation of liquid crystal.
在所研究的五种油质原料中,十六~十八醇可以很好的促进液晶结构的形成;极性的 PPG-15硬脂醚与十八酸不利于液晶的形成;而非极性的白油则不影响体系液晶结构的形成。
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In Drsophila eye, PCP is evident in the coordinated orientation of ommatidia that rotate 90° in opposite directions in the dorsal and ventral halves of the eye during eye development. The key point for ommatidia to rotate correctly is the decision of R3/R4 fate that is controlled by PCP.
平面细胞极性在果蝇复眼的功能是在发育过程中协调位处背腹部的小眼各自旋转90度,使其依背腹轴形成镜像对称,而要使此过程有正确的旋转角度就要有正确的R3/R4细胞命运的选择,平面细胞极性的作用正是调控R3/R4细胞的选择。
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The results showed that Kaidimycin was chemically neutral, macrocylic polylactones, stable and liable to dissolve into water and pyridine, slight to dissolve into methanol, ethanol and N-butanol, difficult to dissolve into ethyl acetate, acetone, benzene and chloroform. Chemical reaction of functional group of Kaidimycin showed that it had glycoside, amino acid and aldehyde, no reducing sugar, polypeptide and phenol.
凯地菌素属中等极性的、中性抗生素,极性纸层析结果与多烯类抗生素的纸层析结果相似:易溶于水、吡啶,微溶于甲醇、乙醇、正丁醇,不溶于乙酸乙酯、丙酮、苯、三氯化碳;对高温、光照和紫外处理有很好的稳定性;官能团反应试验结果发现,凯地菌素可能含有糖苷键、氨基酸伯氨基和醛基,不含有还原糖、多肽和酚基,高锰酸钾、浓硫酸反应与多烯大环内酯类抗生素的特性相似;并且依据纯品,采用生物法和分光光度法对摇床发酵液进行了效价的测定。
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Effect of chemical properties of naphthalene derivatives on adsorption was discussed, and it was concluded that naphthylamines with small dipole moment were ready to be adsorbed on nonpolar XAD-2 and XAD-4, while naphthols with high dipole moment were more likely adsorbed on XAD-7 and XAD-8 with medium polarity.
讨论了萘系列化合物性质对于吸附的影响,发现偶极矩小的萘胺分子更容易在非极性的XAD-2和XAD-4上吸附,而偶极矩大的萘酚更容易在中极性的XAD-7和XAD-8树脂上吸附。
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Pure methyl esters were prepared using common oil plant seeds and the fatty acid composition of the achieved oil was measured by capillary column chromatography.The kinds and dosage of reagents for fast preparation of the methyl esters were investigated and the chromatographic conditions using two kinds of capillary columns were optimized.
本研究通过参考文献,直接使用常见油料植物种子制备纯油甲酯进行分析,探讨了快速制备甲酯的试剂选择及用量,强极性和弱极性的两种不同类型毛细管柱的最佳色谱分析条件,并将测定的主要脂肪酸含量与国家标准进行比较,结果较为一致,而且平行测定的相对标准偏差表明方法有较好的精密度和重复性。
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Most configurations of mind have many facets, and understanding of either self polarities, or what you would call other-self polarities, can and must be understood as subtle work.
大多数的心智形态有许多面相,或者是自我极性的了解,或者是你称为的其他-自我极性的了解,这能够并且必须被理解成微妙的工作。
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The results show that the as-synthesized chalcone-containing copolymers are a kind of thermosensitive polymer with a lower critic solution temperature and the LCST of the copolymer decreases with the increase of the chalcone content in the copolymer. With the increase of the solvent polarity, both the maximum absorption wavelength and the fluorescence emitting wavelength of the chalcone-containing copolymers redshifts, and the intensity of fluorescence first increases, then decreases, which exhibits solvent polarity sensitive fluorescence properties.
结果表明,侧链查尔酮共聚物是一类具有低临界溶解温度的温敏性聚合物,其LCST温度随着共聚物中查尔酮含量的增加而降低;随着溶剂极性的增加,侧链查尔酮共聚物的紫外-可见最大吸收波长红移,其荧光发光波长红移并且发光强度先增强后降低,具有溶剂极性敏感的荧光特性;同时对比侧链查尔酮共聚物水溶液低温和高温下的荧光,发现低温下几乎无荧光,高温下其荧光得到明显增强,其荧光具有可逆的温度&开/关&特性。
- 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。