Post-drying to be adhesive, loosen the external force Snip screen frame outside around the screen, and then use the single-sided adhesive tape affixed onto a screen and screen frame adhesive, so as to protect the screen and screen frame, you can also prevent business card printing and membership card when solvent or water dissolved on adhesive so as to ensure an effective screen.
待粘合胶潮湿后，放松内部弛不松辛，剪断网框外外边际的丝网，然后用单背不潮胶纸带贴在丝网与网框粘接的部位，这样可起到爱护丝网与网框的功用，还可以在避免制卡和会员卡制作时溶剂或火差粘合胶的凝固，以包管丝网印版的灵验搁置。
The effective factors of ethanol concentration, temperature, treatment time and mass/volume ratio of solvent were studied through orthogonal tests [L9(3^4)] on the basis of single factor test.
在单因素实验基础上采用L9(3^4)正交设计，考察了乙醇浓度、浸提时间、浸提温度、料液比等因素对枸骨叶总黄酮提取率的影响。
The selective linear dimerization of isoprene to formate myrcene in a single phase catalyst solution prepared by mixing two metals, amine, solvent and a small content of isoprene was studied.
摘 要：研究了异戊二烯在两种金属催化作用下均相线性二聚生成月桂烯的影响因素，得到优惠工艺条件：反应温度 13℃，催化剂∶异戊二烯=0 。0 5∶1 0 ，胺∶异戊二烯=0 。0 7∶1.0。
The sample volume, concentration and volume of elution solvent were optimized by single-factor experiments.
通过单因素实验对最佳上样量、洗脱溶剂浓度、体积等进行考察。
METHOD:(1)Selecting one strain SIPI-4411 from starting 4 fungal strains with potential ability in biotransformation; (2) Optimizing culture media of SIPI-4411; (3)Ensuring the factors which effected the transformation such as temperature, pH, aeration etc by single factor experiments; (4)Bio-transforming the canrenone with the enzyme system of Aspergillus ochraceus SIPI-4411; By solvent extraction and silica gel column chromatography, the compound SIPI-CANR was obtained.
①从4个具有甾体转化潜力的菌株中筛选出一株生长情况最佳，转化潜力最高的菌株SIPI-4411；②对SIPI-4411的培养基进行优化；③通过单因素的发酵实验，确定了影响转化的因素，如温度、通风量、pH等；④应用赭曲霉SIPI-4411的羟化酶系统对化合物坎利酮进行生物转化，通过溶剂萃取、硅胶柱层析，获得转化产物SIPI-CANR化合物的纯品。
O-Ethoxyphenol is synthesized from o-dihydroxybenzene and bromoethane in single solvent with alkalescence.
以邻苯二酚和溴乙烷为原料，在碱性条件及单一溶剂中合成了邻乙氧基苯酚。
By analyzing and researching the corrosion resistant mechanism of adsorption typal acidification corrosion inhibitor, taking single equational experimental method, making use of mannich reaction and using the hydrochloric acid as catalyst and the ethyl alcohol absolute as solvent, the new acidification corrosion inhibitor HZ-1 is synthesed by formaldehyde、hypnone、aromatic amines in the present research of this thesis.
本文通过对吸附型酸液缓蚀剂缓蚀机理的分析和研究，利用单因素实验方法，采用曼尼希反应，以盐酸为催化剂，无水乙醇为溶剂，用甲醛、苯乙酮、芳香多胺合成了新型酸化缓蚀剂HZ-1。
Perhaps the most widely used methord for growing single crystals is this one in which one takes a solution of your target molecule that is not quite saturated and slowly allows the solvent to evaporate.
大意：大概应用最广泛的长单晶的方法就是这种，采用目标分子的不饱和溶液慢慢挥发溶剂的方法。
Maize yellow pigment was extracted from corn gluten taking the rate of extraction as index, and according to the nature of the maize yellow pigment, the experiment research of the mixed solvent extraction had been made in the basic of single solvent extraction experiment.
以玉米蛋白粉为原料，玉米黄色素的提取率为指标，根据玉米黄色素的性质，在单一溶剂提取实验的基础上进行了混合溶剂的提取实验研究。
In order to develop the accelerated solvent extraction method for escins in Aesculi and compare the advantage of this method with other extraction methods, the optimum technological parameters for ASE extraction were obtained by making the single factor experiments.
本文以娑罗子中的四种七叶皂苷的提取率为指标，以高效液相色谱法为检测方法，用单因素考察法对加速溶剂提取法从娑罗子中提取七叶皂苷的工艺条件进行优化。
Summary: Regard guava as raw materials, adopt the organic solvent to extract the law, pass the single factor experiment and orthogonal experiment, to influence many phenol draw abstraction pharmaceutical kind of quantity, draw pharmaceutical volume mark, draw time, draw temperature factor go on the discussion compared with material liquid, etc., the ones that confirm much phenol of guava draw the craft parameter bestly: Volume mark 70% ethanol according to material 1:10 volume ratio of liquid, 70 ℃lay reflux draw 40min in temperature, many abstraction amount of phenol can reach 62.35mg/g be thing.
问题补充：不好意思，我修改了一下摘要，正文应该是：以番石榴为原料，采用有机溶剂萃取法，通过单因素实验和正交实验，对影响多酚提取量的提取剂种类、提取剂体积分数、提取时间、提取温度和料液比等因素进行探讨，确定番石榴多酚的最佳提取工艺参数为：体积分数为70%的乙醇按1∶10的料液比，在温度70℃下回流提取40min，多酚的提取量可达到62.35mg/g干物。
In benzylideneaniline part, when anhydrous DMF with saturated hydrogen chloride as a solvent, benzylideneaniline derivatives and analogues can undergo a novel photoalkylation, there have a new carbon-carbon bond formation between benzylideneaniline and N-methyl from DMF. The mechanism of photoalkylation in Schiff's base has been considered about radical intermedium or single electron transfer in the pass, and therefore we proposed the mechanism of our reaction, involved DMF transfer an electron to the protonated and excited benzylideneaniline derivatives by irradiation, and finally the combination of radical intermediums to obtain a new series of products.
在苯亚甲基苯胺研究部分，我们利用含有饱和盐酸的无水N，N-二甲基甲醯胺或N，N-二甲基乙醯胺作为溶剂进行照光反应，得到一新的光烃化反应，即N，N-二甲基甲醯胺的氮上甲基加成在苯亚甲基苯胺上，并且有相当不错之产率，由以往文献之探讨我们知道此类化合物的光烃化反应都与自由基和电子转移有关，因此我们推测我们的反应为醯胺经由照光得到自由基的中间体并且转移一个电子给质子化后激发态的苯亚甲基苯胺，最后自由基的结合而得到我们新反应的产物。
The composite solvents (NMP+formamide, NMP+DMSO) do better extraction of heavy aromatics for the light diesel oil than single solvent..
由NMP与甲酰胺以及由NMP和DMSO所构成的复合溶剂对轻柴油重芳烃的萃取具有比单一溶剂较好的分离效果。
The strain could catalyze asymmetric synthesis of-1-(2-chloro-phenyl)-ethanol from o-chloroacetophenone with high yield andstereoselectivity. After researching the effect of cosolvent and comparingdifferent aqueous/organic solvent two-phase reaction systems, the reaction system ofreducing high concentration o-chloroacetophenone by C.104 cell in single aqueous phasewas constructed.
研究了助溶剂乙醇含量对酵母还原产率的影响，比较了不同的水／有机溶剂两相反应体系中的还原效率，最后选择了无助溶剂的单一水相中酵母细胞催化还原高浓度2`-氯-苯乙酮作为反应体系。
The BED experiment for acetonitrile-toluene system with isopropyl benzene and mixed solvents was carried out respectively and the influence of reflux ratio and solvent ratio on BED process was analyzed in this paper. The result shows that the performence of mixed solvents is superior to single solvent and the molar fraction of acetonitrile in column top can reach 0.994; reflux ratio and solvent ratio have little influence on the yield of acetonitrile; reflux ratio can be 2~3 in favor of separation of acetonitrile and isopropyl benzene at stage of acetonitrile distillated; solvent ratio of mixed solvents at 1~1.5 is adequate; reflux ratio can be moderately decreased to reduce operational time at subsequent stage.
分别采用纯异丙苯及异丙苯-NMP混合溶剂进行了乙腈-甲苯物系的间歇萃取精馏实验并对回流比和溶剂比对过程的影响进行了分析，结果表明：在相同实验条件下，混合溶剂的分离效果明显好于单一溶剂，塔顶乙腈纯度可达0.994；溶剂比及回流比对乙腈收率的影响不大；在乙腈产品采出阶段，可取较大回流比以利于乙腈和异丙苯的分离，如2~3，同时混合溶剂的溶剂比不宜过大，可取1~1.5；在采出甲苯产品及回收溶剂阶段可适当降低回流比以减少操作时间。
Due to loss solvent for single crystal 8, we can only get the skeleton diagram of its structure.
进一步研究发现配合物8是己内酯开环聚合的高效引发剂。
In the new technology of cyclization process for synthesizing Trimethoprim from 3, 4, 5-trimethoxybenzaldehyde methanol was partially substituted by ethanol as solvent and the single reflux operation was replaced by double reflux operation.
在以3，4，5-三甲氧基苯甲醛为原料合成磺胺增效剂甲氧氨嘧啶的环合工艺中，针对收率偏低等进行了改进研究，提出了以乙醇代替部分甲醇做溶剂和改一次回流为二次回流的环合新工艺，收率达77%。
The results showed that each mixed solvent was much better than any of the single ones. The best one was the solvent of ethylalcohol and chlorobenzene, and the recovery of solvent was over 85%.
结果表明，在该工艺的第2次还原中，混合溶剂比单组分溶剂效果好，用乙醇与氯苯配成的混合溶剂较好，溶剂回收率大于85%。
The extraction techniques of pigment from grape peel by solvent method were studied on the basis of single factor.
对刺葡萄果皮色素的溶剂法提取工艺在单因素水平基础上进行了研究，并对提取所得色素的理化性质进行了测定。
In the physical method, effects of different single solvents, multiplex solvents with high content alkali, multiplex solvents with high content alcohol, and multiplex solvents with high content acyl amine on the desulphurization were investigated. The extraction conditions of gasoline are the extraction temperature of 15℃, extraction time of 15min, the solvent to oil ratio of 1. Among all of the solvents, DMF is the best extractor. Its desulphurization ratio was 53.78%. The adsorption conditions of gasoline are the amount of sorbent of 1.0g, adsorption temperature of 30℃, adsorption time of 20min.
在物理方法中，以汽油为原料，考察了单一溶剂及以碱、醇及酰胺类为主萃取剂的脱硫效果，在萃取脱硫条件为萃取温度15℃，静置时间15min，剂油比为1时，所考察的萃取剂中，N，N-二甲基甲酰胺脱硫效果最好，脱硫率为53.78%；在吸附脱硫条件为吸附剂用量1.0g，吸附温度30℃，吸附时间20min时，考察了9种吸附剂的脱硫效果，其中硅胶的脱硫效果最好，油品中的硫含量由179.3mg/L降至49.83mg/L，脱硫率达到72.21%。