查询词典 Ph D

The PH value of a mixed solution of a strong acid solution with a weak monoacid, the two solutions that their PH values and volumes are equal, isn't changed.

PH值相等的强酸、一元弱酸溶液等体积混合，只要二者不发生反应，混合溶液的PH值保持不变。

The properties of Mucor protease are studied. The Mucor protease are multienzymes that contain neutral and alkaline protease that have optimum pH in 9. 4 and a stable pH range 5. 5～10.The optimum temperature for neutral is in 60 ℃ and alkaline in 50℃. The activity of enzymes is stable for 100min in 40℃ and 50℃ incubation.

二、检测了毛霉蛋白酶的性质，结果表明毛霉蛋白酶系以中性及碱性蛋白酶为主，该酶系的最适pH为9.4，在PH5.5～10的范围内稳定，中性蛋白酶的最适温度为60℃，碱性蛋白酶的最适温度为50℃，在40℃、50℃保温100min酶活稳定，属于中高温型蛋白酶。

We studied the effects of protein content, pH and ionic strength on viscosity of silver carp myofibril protein by orthogonal rotational regression design, and established the regression equation of silver carp myofibrillar protein solution viscosity with protein content, pH and ionic strengt

利用二次回归正交旋转试验设计，研究了蛋白质浓度、pH、离子强度对鲢鱼肌原纤维蛋白粘度的影响，建立相应的回归方程，分析比较了它们间的相互作用关系，确定了取得最优粘度时，各因素的组

The experimental results show that hydrophobic association increases obviously with increasing polymer concentration, hydrophobe content, hydrophobic side chain length and temperature. The Critical aggregate concentration of P (AM/NaAA/C8AM) with different hydrophobic content is 1.5~3g/L. Strong association between surfactant sodium dodecyl sulfate and P (AM/NaAA/C8AM) occurs through the formation of mixed micelles. The CMC of SDS is 8×10^(-3)mol/L. Moreover, because of the presence of-COOH group, the terpolymers have pH-responsive characterization. The hydrophobical association changes greatly with increasing pH.

结果表明，随聚合物浓度、疏水单体摩尔分数、疏水侧链长和温度的增加，疏水缔合作用增强；不同疏水单体含量的P(AM/NaAA/C8AM)的临界缔合浓度为1.5~3.0g/L；表面活性剂十二烷基硫酸钠与P(AM/NaAA/C8AM)发生了强烈的疏水相互作用，形成混合胶束，得到SDS的临界胶束浓度为8×l0^(-3)mol/L；由于聚合物链上羟基的存在，使其具有良好的pH敏感性，随pH值的增大，P(AM/NaAA/C8AM)的疏水缔合作用呈现先减弱后恒定再增强的变化。

In creating grain process,using compound counteracting material and opsonin to counteract pH,which solves the current congenerproduction problem of low pH and easy to harm seedling.Further,the effect applying technlogy of organic and inorganic compounded fertilize was brought forward on vegetable etc.

在造粒过程中，使用混合中和剂与调理剂调节肥料pH，解决了现有工艺生产的同类麸酸有机无机复混肥产品pH值低、易烧苗等问题；提出了麸酸有机无机复混肥在蔬菜等主要农作物上的高效施用技术。

The effects of the pH value of the solution and ultrasonic time to the modified nanoparticles were studied, and the result shows that the optimum pH value is 4-5 and ultrasonic time is 20 min.

并研究了溶液pH值、超声波分散时间对纳米粒子改性的影响，得出了最佳的工艺条件：溶液pH值为4～5，超声波分散时间为20 min。

Results showed that advanced oxidation technique of ozonization has a good effect on removal of acid red B. After 30 min reaction with pH=7, up to 99.5% of color decay was obtained and chemical oxygen demand was 37.9%. If initial pH of the wastewater was increased to 11, the removal rate of COD was optimum.

结果 在pH=7的条件下，单一臭氧氧化30 min时，废水的色度和COD去除率分别为99.5%和37.9%；而废水的初始pH值控制在11左右时，COD去除率有较大提高。O3/H2O2氧化工艺，适宜的H2O2和O3物质的量比为0.6，氧化处理30 min废水的COD去除率可达53.5%。

The difference of pH modifier and pH number in the synthesis process, induced different PEC properties of sensitied solar cell.

合成过程中的pH值和pH调节剂的种类的不同，都会对敏化光电极光电转化效率的高低有影响。

The results showed that the optimum temperature, pH value, carbonic source and nitrogenous source were 28℃, pH 7, sucrose and peptone respectively.

结果显示，木蹄层孔菌的营养菌丝生长最适培养温度为28℃，最适培养pH值为7，最适培养C源为蔗糖，最适培养N源为蛋白胨。

The effect of reaction time, leaching times and solvent PH, ratio of raw material and solvent, PH of phytin, settling time on phytin yield and quality, extracted from tikitiki , were studied.

对米糠中提取菲丁的工艺条件进行了优化，考察了酸浸时间、酸浸次数、酸浸pH值、液料比、中和pH值、静止时间等因素对产品的产量和质量的影响，得出了优化的工艺条件。

At a checkout counter nearby in the Tracy library, Brandon Perry, 24,and his fiancee, Chardenac Van Rooter, 21, were applying for librarycards Friday to aid in their job searches.

在查西图书馆的一个还书柜台前，24岁的布兰顿"佩利和他21岁的未婚妻查德纳奇"鲁特正在申请借书证以帮助他们找工作。

Society is increasingly compartmentalised.

Re： 请问&沦落到社会的底层&应该怎么表达？