等浓度

SPMD technology has advantage in monitoring the variations of trace organic pollutants and their more important metabolites, which might be Environmental Endocrine Disrupters.

SPMD技术应用于饮用水处理流程的重要意义在于：天然大分子有机物和人工合成有机物可能在加氯消毒过程中转化成为更具环境意义的有毒有机污染物，由于转化产物种类复杂、浓度更低、易变化，XAD树脂萃取等常规技术难以开展目标物及其转化产物的跟踪监测。

The paper introduces briefly to adjust and control some parameters,such as surface dopant concertration to attain necessary...

简单介绍通过调整和控制表面杂质浓度等参数，得到所需的灵敏度温度漂移曲线。

Er concentration.2. With the analysis of the optical parameters calculated by Judd-Ofelt theory and the lifetime of ~4I_(13/2) of Er gotten in experiment, we investigated Y dopings dispertion effect and influence to the environment of Er .3. In the research of Er/Yb/Al co-doped laser glass, we fixed the Er:Yb at 1:6 and varied the Al concentration.

我们利用Judd-Ofelt理论，计算得到了Er/Y共掺玻璃的Judd-Ofelt强度系数、光谱质量因子、自发辐射弛豫率和能级寿命等光谱参数，并且给出了不同Y掺杂浓度下Er~(3 )离子的荧光量子效率；结合Er~(3 )离子~4I_(13/2)能级的荧光寿命，深入探讨了掺Y对高浓度Er~(3 )离子在硼硅酸盐玻璃中分布的弥散作用和对配位场环境的影响。

In order to select monomer of Chinese herbal polysaccharide with better immunity, four CHPs, APS, ABPS, IRPS and DOPS at six doses were added in the splenic lymphocyte of chick in vitro, and cultured 48 h. The splenic lymphocyte proliferation was determined with the MTT method.

为了筛选免疫增强作用较好的单味中药成分，将6种浓度的黄芪多糖、牛膝多糖、板蓝根多糖、山药多糖等4种中药多糖分别加入到体外培养的鸡脾脏淋巴细胞中，培养48h后，用MTT法测定淋巴细胞增殖的变化。

The analytical parameters including pH value, sample volume, flow rate of sample solution and elution conditions (concentration, volume and flow rate of eluant) were investigated. The effect of foreign ions and the adsorption capacity of the modified peanut shell were examined.

考察了样品pH值、进样体积、流速、洗脱剂浓度、体积、流速等参数的影响，同时研究了共存离子的影响，评价了萃取材料的吸附容量及再生性能。

The determination of high molecular weight impurities which existed in cefotaxime, ceftriaxone and ceftazidime and the influences of different ion-pair reagents; pH value of the eluants and the flow rate on the chromatographic column were discussed in detail.

以建立头孢噻肟、头孢曲松、头孢他啶中高分子杂质含量的快速测定方法为目的，对不同离子对试剂、洗脱剂pH、洗脱剂类型、离子对浓度、洗脱速度等因素进行了研究。

With the Sand culture method, influences of different magnesium levels (0%、50%、100%、150%、200% and 300%) was explored to the wheat seedlings of different stages. Many targets such as plant height, root length, biomass, content of chlorophyll, activity of root, RGY, RGR and ratio of root to crown of the wheat were mensurated at the time of 7d, 15d and 30d of two leaves stage of wheat seedlings after their endosperms were removed at different magnesium levels.The results showed that different magnesium levels had unlike influences over the wheat seedlings.

以小麦为试材，采用砂基培养的方法，在镁浓度分别为对照组的0%、50%、100%、150%、200%和300%的营养基质上，培养剔除胚乳后的二叶期小麦幼苗7d、15d及30d，并分别测定该3个时间段小麦幼苗的株高、根长、地上部和地下部的生物量、叶绿素含量、根系活力以及相对生长速度、相对生长速率和根冠比等指标，研究不同供镁水平对不同时期小麦幼苗生长速率的影响。

The effects of different concentrations of Cr(superscript 6+)(0, 10, 20, 50, 100 mg/L K2Cr2O7) on the content of Pro, malondialdehyde, membrane permeability, activities of protective enzyme SOD and POD in roots and epicotyls of maize seedlings were studied.

研究了不同浓度(0， 10， 20， 50， 100mg/L K2Cr2O7)Cr(上标 6+)胁迫对玉米幼苗根和上胚轴中脯氨酸和丙二醛含量、细胞膜透性、超氧化物歧化酶及过氧化物酶等保护酶活性的影响。

Various factors influencing natural gas hydrate f ormation were studied in laboratory,including gas composition,temperature,pressu re,water saturation,ion concentration,gas stirrin g and carbon dioxide gas,etc.

本文主要就影响天然气水合物形成的各种因素进行实验研究，包括气体组成、温度压力、含水饱和度、离子浓度、气体搅拌、CO2 酸性气体等的影响。

This paper also discusses the density and PH value of liquid, the selection and compound principle of fire-extinguishing material...

讨论了矸石中可燃物的成分、硫化物的含量，是确定灭火浆液PH值、灭火材料选取的重要依据；矸石的堆积形式、力学性质、粒度级配等，是确定灭火浆液浓度的主要因素。介绍了浇注浆灭火方法与技术及其可行性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。