等浓度

Effects of Psoralea corylifolia L.extract on the defensive enzymes on cucumber were studied and the results showed that activities of peroxidase,polyphenol oxidase, phenylalanine ammonialyaseof cucumber leaves were increased to highest level after 7 to 9 days at 40 mg/L and 400 mg/L.

补骨脂粗提物处理两叶一心生长期的黄瓜幼苗，补骨脂提取物在40mg/L和400mg/L浓度下，黄瓜体内过氧化物酶、多酚氧化酶、苯丙氨酸解氨酶等一些防御酶活性均在处理后7d～9d达最高。

If purificatory measure does not be taken, the content of HCl gas in the air will arrive at several tens or hundreds mg/m~3 more.

在化工、造纸、电镀、油脂等行业中不可避免地要产生氯化氢废气，如不采取净化措施，会使车间空气中氯化氢废气的浓度达到数十甚至数百mg/m~3 ，远高于环境卫生标准0.3 mg/m~3。

Optimization of resolution conditions and affecting factors on resolution such as solvent, the molecular ratio of racemate to resolving agent, method of reaction, concentration of racemate, crystallization temperature and crystallization time were studied.

对影响拆分的因素溶剂和底物浓度通过均匀实验进行了优化，同时对其他影响因素如底物与拆分剂投料比、反应物溶解方式、结晶时间和结晶温度等进行了考察。

This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.

本论文研究胶粒的非平衡不可逆聚集动态学，分为两个部分，第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中，聚集标度性质的普适性，即使用透射电子显微技术观测聚集粒子簇的分形结构，使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学，胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态，当加入电解质NaCl溶液时，碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短，从而降低静电排斥能垒，引起胶粒发生不可逆聚集，加入电解质NaCl的浓度为1.00mol/l时，碱式碳酸钇胶粒进行快速聚集，经历扩散控制聚集机理，形成结构疏松、更为开放的分形聚集粒子簇，其分形维数为1.82，碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律，与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致，表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的，首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数，并且其值与Smoluchowski聚集速率理论预期相符。

The result showed that at the concentration 0.01 g/mL,the antifungal rate of 27 MPE(for example,Soianum nigrum,Ranunculus ternatus and Eriobotrya iaponica)was more than 50% against at least one tested fungi.

结果表明：在提取物供试质量浓度为0.01 g/mL条件下，龙葵、猫爪草、枇杷叶等27种中草药提取物对至少一种病原真菌的菌丝生长抑制率超过50%，有6种提取物对2种病原菌抑制率均达50%以上。

The effect of reactive condition including reactant concentration, reactant time and solvent was studied in detail.

研究了反应物浓度、pH、反应时间、溶剂等反应条件对粒子粒径及分布的影响。

Effects of concentration of reagents, the time of reaction on the experiment were studied.

对影响实验的因素如PVP和VO2的浓度、保温时间等进行了研究。

The influence of different conditions such as concentration of metal ions, temperature, reaction time etc.

研究不同反应条件如浓度、温度、反应时间等对实验结果的影响。

When the urea concentration was lowered to 0.5 M, the dissociated small subunit could almost completely rebind L.R. Li et al.

当尿素浓度降至0.5米，游离小亚基可几乎完全rebind （土地注册处处长李等人。

Under the influence of the submergence the recirculation intensity are quite high at the end stage of burning.

并且展示了不同时刻、不同装药形式的火箭发动机两相流动的浓度分布及传热等规律。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！