查询词典 solvent

The results also show that subtituent position on the benzene ring has a great influence on the transfer volume. The trends of change of δ〓ΔΦ〓〓 for mand p-isometers with the composition of the mixed solvent are similar. However, the position and amplitude of the limit valve are different from each other. These are discussed according to the inductive effect and the resonance effect.

研究发现：取代基在苯环上的取代位置对迁移偏摩尔体积有明显影响，间、对位取代的异构体在DMF-水混合溶剂中的δ〓Δφ〓〓随混合溶剂的组成变化规律相似，但极值点的位置及幅度有所不同，根据诱导效应和共轭效应对此进行了讨论。

Above all, water is a kind of solvent, which can solve hard stone.

首先，因为水是一种极佳的溶剂，它能溶解坚硬的岩石。

The polishing fluid is composed of Al2O3 micropowder with a grain diameter of 0.5-1.0 mum, coal oil, lard, plant oil and spindle oil, wherein Al2O3 micropowder is abradant, coal oil is solvent, the mixing liquid of lard, plant oil and spindle oil is as additive; and the polishing fluid is prepared by a mixing liquid which is composed of 2% lard, 2% abraser, 8% plant oil and spindle oil by volume and 88% coal oil. The polishing fluid can produce the H62 brass element with a uniform surface quality and a good surface roughness value up to 0.008 mum, has the characteristics of no eroding elements, effectively relieving mechanical score, good processing surface quality and can be used for decoration of the plastic metal material and surface polishing process before the material metallographic microscope analysis.

抛光液由粒径为0.5～1.0μm的Al 2 O 3 微粉、煤油、猪油、植物油和锭子油混合而成；其中Al 2 O 3 微粉为磨料，煤油作溶剂，猪油、植物油和锭子油的混合液作添加剂；抛光液按体积比由2％的猪油、2％的磨料、8％的植物油和锭子油的混合液、88％的煤油配制而成；该抛光液能够加工出表面质量均匀，表面粗糙度值达到0.008μm的H62黄铜工件，具有不腐蚀工件、有效缓解机械刻划作用、加工表面质量好的特点，可以用于塑性金属材料的外观装饰性加工，以及材料金相分析前的表面抛光加工。

The results of SEM and AFM show that the obtained titania powder from the solvent of distilled water and absolute alcohol is intact solid and spherical particle with smooth surface and perfect dispersibility. The crystalline size is about 300 nm.

SEM和AFM结果表明，以去离子水和无水乙醇混合液为溶剂制备的TiO2粉体为完整的买心球形颗粒，颗粒表面非常光滑，分散性比较好，粒径约为300 nm。

To achieve the purpose of quality control, it is measured in accordance with existing national standards, uses the absolute ethyl alcohol as the solvent and the errors close to 8 percent according to the spectrophotometric method.

求助翻译目的：克霉唑阴道泡腾片为已有国家标准的药品，按照已有国家标准进行含量测定，以无水乙醇为溶剂，采用分光光度法测定误差接近8%，为

To develop a new kind of absorbent applied to organic exhaust gas purification and recovery, and featured by its good absorption and desorption performances, stable absorbefacient and distinct separation between solute and solvent, on the basis of previous work, a study task of liquid paraffin regarded as an absorbent has been established and some relevant fundamental researches have been done on the liquid paraffin absorbent.

为选择一种适用于有机废气吸收净化、回收，且吸收性能好、解吸性能优越、溶质和溶剂分割清楚、吸收性能稳定的吸收剂，本论文在前人工作的基础上，确立了以液体石蜡作为吸收剂的研究课题，并对液体石蜡吸收剂进行了初步的基础性研究。通过进行液体石蜡对苯吸收性能和解吸性能的基础性研究，得出以下主要结论：液体石蜡对苯的吸收量大；其本身的沸点在340℃以上，对吸收质分割清楚；液体石蜡粘度适中，动力消耗小。

The substitution and solvent effects on absorption spectrum of the dyes are also studied.

研究了取代基、溶剂对上述染料吸收光谱的影响。

Results Sort the risk factors by turns according to OR value, threatened abortion, insecticide, oestrogenic hormone, tocolytic agent, organic solvent,abstergent, subcalorism and mal-medication in inchoated duration of pregnancy,conceptus age7 weeks.

结果：危险因素按OR值排序，依次为先兆流产、杀虫剂、雌激素、保胎药、有机溶剂、洗涤剂、孕早期感冒、孕早期不当用药、胎龄7周。

The sample was digested by high-pressure vessel with HNO3/H2O2 as the solvent. By measuring 200Hg/202Hg abundance ratio and adding quantity of the spike, the content of Hg was determined. Moreover, the uncertainty of results were also analyzed and evaluated.

样品处理采用高压密封焖罐酸溶样技术，将样品与202Hg稀释剂混合，通过所加稀释剂的量和测量混合样品中200Hg/202Hg的丰度比，准确计算出样品中Hg元素的含量，同时对测量结果的不确定度进行分析和评定。

METHODS The antioxidant of 75% ethanolic extract and organic solvent extracts, water extracts and polysaccharids from Acanthus ilicifolins L.

方法采用流动注射化学发光法，研究该植物75%乙醇提取物及其有机溶剂萃取分离部分、水提取物及多糖对过氧化氢(H2O2)的清除作用。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。