当发光基团松弛，C15次甲基桥的两个二面角的扭曲是相反的。
As the chromophore relaxes, the twist of the C15 methine bridge about its two dihedral angles is reversed.
以WO 3粉末为催化剂，研究了在水溶液中次甲基蓝染料的光催化降解。
Photocatalytic degradation of methylene blue dye in aqueous solution with WO3 dispersion has been investigated.
优选地，阳离子染料选自偶氮染料、偶氮甲碱染料、次甲基染料和？吨染料。
The cationic dye may be chosen from azo dyes, azomethine dyes, methine dyes and xanthene dyes.
将所得样品作为催化剂，以有机染料次甲基兰为模型，进行了光催化降解实验研究。
The results shown that the product of hydrothermal synthesis for methylene blue dye has better photocatalytic degradation activity2.
由HAR和六次甲基二异氰酸酯反应制备了性能优异的高固体分双组分丙烯酸聚氨酯涂料。
A double component coating, acrylic polyurethane with high solid and good performance, was prepared by the reaction of HAR and HDI.
研究了几种表面活性剂在盐酸介质中的缓蚀作用以及与六次甲基胺复配时的协同缓蚀作用。
Inhibition effect of several surfactants, and coordination inhibition effect of the surfactants and (CH2) 6n4 in hydrochloric medium were studied.
以复合离子聚合物、六次甲基四胺、间苯二酚为主要原料，制取复合离子聚合物调剖堵水剂。
The compound ion polymer in-depth profile adjusting and water plugging agent had been developed by compound ion polymer, urotropine, resorcin, ammonium chloride as mostly material.
通过将苯阻隔单元引入到聚合物的主链，制备了一系列具有良好溶解性的聚芳杂环次甲基聚合物。
Meanwhile, with the introduction of phenylene units into polymer backbone, a series of poly(heteroarylene methine) polymers were synthesized.
用72型分光光度计，对次甲基蓝溶液符合光吸收定律的浓度范围，及其工作波长的选择进行了探索。
Type 72 spectrophotometer is used for the research on the concentration range of methylene blue solution which coincides with the law of light absorption and the selection of the wavelength.
在乙醚溶液制得的聚苯乙烯次甲基锂与甲基丙烯酸甲酯反应不能分离出聚甲基丙烯酸甲酯及它的接枝共聚物。
Neither polymethylmethacrylate nor polymethylmethacrylate-grafted copolymer could be isolated by the reaction of polystyrene methylene lithium prepared in ether solution with methyl methacrylate.
通过对醋酸洋红染色法、次甲基兰染色法、TTC染色法和过氧化物酶沉淀法四种方法的比较，寻找快速测定矮牵牛花粉生命力的方法。
Carmine acetate dyeing, methylene blue dyeing, TTC dyeing and peroxidase settling process were compared in order to seek for a fast determination method of petunia's pollen viability.
我们有我们的专利甲基块传输方式，这一次，我们将起诉任何人，试图撕裂了我们的专利保护提供系统！
We have patented our Methyl Block delivery method and this time we will Sue anyone that tries to rip off our patent protected delivery system!
探讨了以异丙醇-水作溶剂，通过一次醚化，制备高取代度、高粘度羧甲基淀粉醚的最佳条件。
This paper discusses the optimum condition for preparing carboxymethyl starch with high degree of substitution and high viscosity by using the solution isopropanol-water through etherification.
采用两次加碱法工艺，对经纱上浆用羧甲基淀粉干法制备工艺进行了研究。
Dry preparation of carboxymethyl starch for warp sizing by adding alkali twice was studied.
研究工作场所环境空气中二甲基甲酰胺、十一烷和丁酮混合物一次吸附、一次分离的定量分析方法。
Objective To study the analysis method of samples including a combination of dimethylformamide, undecane and butanone in the air of workshop.
方法于兔眼前房注射1%甲基纤维素每周1次，连续5周，制作慢性高眼压模型。
Methods Rabbit chronic ocular hypertension model was Established by injecting 1% methylcellulose into anterior chamber once a week for 5 weeks.
计算聚亚甲基链的末端距四次矩，并同二级相互作用的结果进行了比较。
In this paper, fourth moment of end-to-end distance of polymethylene chains in the third-order interaction approximation is calculated.
样品重复使用6次后，对甲基橙的降解率仍可达80%，表现出较好的重复使用性。
And after repeated 6 times, the degradation ration of methyl orange is 80%, showing good reusability.
该复合材料通过磁分离可反复使用，重复使用7次后，对亚甲基蓝的降解率仍大于90%。
The removal rate of methylene blue still maintains more than 90% even after repeated use for 7 times.
2003年在山东省青州市温室中进行了2次减量甲基溴、覆盖不透膜（VIF膜）土壤消毒试验。
Two times experiments of dosage reduction of methyl bromide(MB) and covering virtually impermeable film(VIF) were carried out in Qingzhou city(Shandong province, China) from 2001 to 2003 year.
然后以PC微凹透镜阵列为二次模板，再通过热压印制得了聚甲基丙烯酸甲酯（PMMA）的微凸透镜阵列。
Then, with the obtained PC microcavity structure serving as a mold, a hot embossing process is applied to finally achieve a polymethylmethacrylate (PMMA) MLA.
采用高效填料，通过对预处理后的杂醇油进行两次精密精馏，得到了高纯度的2-甲基-1-丁醇和（S）-（-）-2-甲基-1-丁醇。
By using efficient padding, fusel oil was exactly distilled twice after being preliminarily dealt with. And then we got highly pure 2-methyl -1-butanol and (S)-(-)-2-methyl -1-butanol.
你会觉得甲基一维立即因为它使即时结果，你可以指望一次又一次。
You will feel Methyl 1-d immediately because it gives instant results that you can count on time and time again.
经过比较50%次亚磷酸水溶液和三丁基氢化锡以及二苯硅烷三种还原剂，S-甲基磺原基适宜的还原剂为50%次亚磷酸水溶液；
After quite inferior hyphoaphoeous acid, 50% phoaphoeous acid solution and tributyl tin hydride S-methyl sulphur being suitable reducing agent is 50% phoaphoeous acid solution;
经过比较50%次亚磷酸水溶液和三丁基氢化锡以及二苯硅烷三种还原剂，S-甲基磺原基适宜的还原剂为50%次亚磷酸水溶液；
After quite inferior hyphoaphoeous acid, 50% phoaphoeous acid solution and tributyl tin hydride S-methyl sulphur being suitable reducing agent is 50% phoaphoeous acid solution;
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