室温
- 与 室温 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Study on synthesis of phosphonic acid with thiadiazole and corrosion resistance on copper;2. Synthesis of N,N-dimethyl-1-aminomethane-1,1-di phosphonic acid N-oxide and researches on its corrosion and scale inhibition performances;3. Two phosphonic acid s: dodecylamine-N,N-dimethylene phosphonic acid and dodecyl phosphonic acid,were used to modify zirconia stationary phase in this paper.
通过红外、元素分析对2种不同类型的膦酸化合物改性氧化锆的改性条件和改性机理进行了研究,结果表明:十二烷基膦酸通过Lewis酸碱作用改性,室温浸泡即可达到满意的吸附量;而具有螯合结构的十二胺-N,N-二亚甲基膦酸与氧化锆结合时存在较强的络合作用,最佳改性条件为酸性条件下加热回流。
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In the presence of a catalyst, ethyl silicate was mixed with ethanol-water solution to form silica sol, which was impregnated into Alnus nepalensis and Tilia amurensis wood as soon as possible.
文章摘要:在催化剂存在下,使正硅酸乙酯与乙醇-水溶液混合制备硅醇溶胶,迅速将其分别注入到西南桤木和紫椴木材中,令其在室温下反应100min左右得到木材-凝胶,然后采用超临界干燥技术制备木材-SiO2气凝胶。
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During the fermentational coagulation of the pasteurised cow milk incubated at ambient temperature for making yaourt, the milk motive viscosity firstly went gradually up until to the highest point, and then it came down comparing to the gradual rising titrable acidity and the gradual descending pH value.
全脂牛奶在室温发酵制作酸乳过程中,其酸度随着发酵时间的延续和微生物添加量的增加而上升,pH值则逐渐降低;而酸乳粘度则随着发酵时间的延续上升达到最高点开始下降。当微生物添加量为 4 %~ 5%,发酵 1 2h时,酸乳凝乳良好,口感适宜,活性乳酸菌总数达到 1 0 7数量级
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The effects of solution\'s pH value, mol ratio between phenyl aldehyde and L-Arginine, concentrations of sodium chloride, ammonia chloride andL-Lystine, initial concentration of L-Arginine on precipitation rate of a -tolylene arginine were investigated, the results indicated that phenyl aldehyde precipitation method\'s appropriate pH value was higher than 11, suitable mol ratio between phenyl aldehyde and L-Arginine was 1.25, initial concentration of L-Arginine was must higher than 15g/L, sodium chloride had little effect on precipitation rate, on the contrary, ammonia chloride and L-Lystine had great effect on it, both of them must be eliminated; At the same time, adsorption isotherm at 25 C of L-Lystine on anion exchange resin A was measured, the result showed that the maximal equilibrium adsorbance was 30mg/g, the influences of solution\'s pH value, temperature, concentration of chloride ion on adsorption of L-Lystine by anion exchange resin A were also studied, the results indicated that appropriate operational pH value was 0.5 0.2, the effect of temperature on adsorption ratio was little, process could be operated at room temperature, the concentration of chloride ion must be eliminated.
考察了溶液pH值、苯甲醛与L-精氨酸摩尔比、氯化钠与氯化铵浓度、L-赖氨酸浓度、L-精氨酸初始浓度对苯甲醛沉淀L-精氨酸的影响,结果表明,沉淀反应的适宜pH值大于11,苯甲醛与L-精氨酸的适宜摩尔比为1.25,(来源:Aa6BC论文网www.abclunwen.com)L-精氨酸适宜的初始浓度在15g/L以上,氯化钠的存在对沉淀率基本上没有影响,而氯化铵和L-赖氨酸的存在使沉淀率下降;同时测定了25℃时阴离子交换树脂A吸附L-赖氨酸的吸附等温线,表明其最大平衡吸附量为30mg/g,考察了溶液pH值、温度、氯离子浓度对阴离子交换树脂A吸附脱除L-赖氨酸的影响,结果显示从L-精氨酸和L-赖氨酸混合液中吸附分离出L-赖氨酸的适宜pH值为10.5±0.2,温度对L-赖氨酸吸附率影响不大,吸附过程可在室温下进行,氯离子的存在使L-赖氨酸的吸附率降低。
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We use 0.5% CMC to preserve the activity of Metarhizium anisopliae at room temperature. Then we carry on the RT-PCR semi-quantitative examination of the trehalase. The fresh Metarhizium anisopliae not preserved do control.
对用0.5%的羧甲基纤维素钠室温保存五个周的绿僵菌,进行海藻糖的半定量RT-PCR检测,用没有经过处理的固体培养基上培养14天的绿僵菌做对照。
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We use 0.5% CMC to preserve the activity of Metarhizium anisopliae at room temperature. Then we carry on the RT-PCR semi-quantitative examination of the trehalase. The fresh Metarhizium anisopliae not preserved do control.
对用0.5%的羧甲基纤维素钠室温保存五个周的绿僵菌,进行海藻糖酶的半定量RT-PCR检测,用没有经过处理的固体培养基上培养14天的绿僵菌做对照。
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At room temperature, solution's pH=11, mole proportion of solution are 1:3 (ammonium sulfate and diethyl amine),1 :2.5(ammonium sulfate and diethylene triamine) and 1:2 (ammonium sulfate and triethylene tetramine).
在室温下,固定剂溶液pH=11,溶液物质的量配比分别为硫酸铵与二乙胺1:3、硫酸铵与二乙烯三胺1:2.5和硫酸铵与三乙烯四胺1:2。
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The experiment products met the specification of HG2340-92 in terms of its first class tribasic lead sulfate.The optimum leaching process parameters were as follows:NaCl concentration 5.5mol/L,leaching temperature 100℃,leaching time 120min,CaCl_2 con...
采用此工艺在实验室制得符合HG2340-92标准一级品要求的产品,并确定浸出过程的最佳工艺参数是:NaCl溶液浓度≥5.5mol/L,浸出温度≥100℃,浸出时间120min,CaCl2浓度0.3mol/L,HCl浓度0.15mol/L,液固比8∶1;合成三盐基硫酸铅的最佳工艺条件为:PbSO4∶NaOH=4∶6,液固比≈2∶1,室温反应时间60min,溶液的终点pH8.4~8.8。
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The reaction of sucrose with triethyl orthoacetate is carried out in DMF solution catalyzed with toluene p-sulphonic acid at ambient.
以DMF为反应介质,对甲苯磺酸催化原乙酸三乙酯与蔗糖室温下的环酯化反应。
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Ambient temperature self-crosslinking acrylic latexes were prepared through semicontinuous emulsion polymerization using 3 different polymerizable alkoxysilanes, i.e. vinyl tri silane (A172), Vinyl triethoxy silane and γ-methacryloxypropyl trimethoxy silane (A174). The hydrolysis of these siloxanes under different pH was characterized, and dependence of the latex and polymer properties on these siloxanes and their incorporated amounts in the polymers was studied.
使用三种含不饱和双键硅氧烷,乙烯基三硅烷(A172)、乙烯基三乙氧基硅烷和γ-甲基丙烯酰氧丙基三甲氧基硅烷(A174)为功能单体,采用半连续乳液聚合法制备了室温自交联丙烯酸酯乳液,探讨了硅氧烷功能单体在不同pH条件下水解情况以及其种类和用量对乳液及乳胶膜性能的影响。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。