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The effect of thermal and anaerobic ageing on the structure and properties of NR vulcanizates was studied.The crosslinking density and distribution of NR vulcanizates during ageing were determined with the method of devulcanization by using the chemical probes,and the physical and dynamic properties were also determined.

研究了热空气老化和真空老化对NR硫化胶结构和性能的影响，采用化学探测剂脱硫的方法测定了老化过程中NR硫化胶交联密度及交联键分布变化的情况，同时测定了硫化胶的力学性能和动态性能随时间变化的情况。

In order to detect product\'s quality and to adjust the synthetic conditions, UV and RP- HPLC methods for the determination of the target product were established according to the components of products in the electrosynthesis course, by which target product were able to be simply, fast and accurately determined without separation in advance. And satisfactory results were obtained when they were applied to the determined of the product\'s content.

本研究为检验产品质量，调整合成工艺条件，根据电合成过程中生成物的组成情况，首先建立了无需进行分离就能够简单、快速、准确测定目标产物的紫外分光光度法和反相高效液相色谱法，并将其应用于产品含量的测定，获得令人满意的实验结果。

The composition and the faunal distribution of fleas are chiefly determined by their host animals and the zoogeographical distribution of the latter is in turn determined by vegetation climate and landscape as well as other geographical factors such as latitude and elevation.

蚤类的组成及区系分布主要决定于它们的宿主动物，而后者的动物地理分布又依次取决于植被、气候、景观及其他地理因素如纬度、海拔高度等。

The batch seeded isothermal desupersaturation experiments of SPM in aqueous solution were carried out and the overall crystal growth kinetics parameters were determined by the nonlinear optimization techniques. Assuming that the volume diffusion rate at growth is equal to the mass transfer rate at dissolution under the same conditions, the two-step crystal growth rate parameters can be determined. At the fow supersaturation, the surface integration rate is proportional to relative surface supersaturation.

通过测量螺旋霉素均相成核动力学，获得了表面能的值，估算出表面熵因子的值在1.41～1.56之间，从而可以推断出螺旋霉素晶体生长的表面反应速率同表面相对过饱和度成线性关系，这种生长机理同第四章得到的结果是相吻合的；利用估算的表面熵因子的值，把螺旋霉素晶体看作为简单的立方科瑟尔晶体，根据能量最低原理，对螺旋霉素的晶体生长进行了模拟。

METHODS: Galanga Resurrectionlily Rhizome volatile oil was extracted by wet distillation method and determined by GC-MS , and the relative content of different constituents was determined by chromatographic peak area normalization method.

采用水蒸气蒸馏法提取山柰挥发油，用气相色谱-质谱联用技术进行测定，并用色谱峰面积归一法确定各化学成分的相对含量。

This is determined by the special structure of the gingival tissue determined.

这是由牙龈组织的特殊结构所决定的。

Taking for example the salt rhythms of the Qianjiang Formation in the Qianjiang Sag of the Jianghan Basin (which is a typical Paleogene saline lacustrine basin in eastern China), through a detailed study on cores, the authors have determined for the first time the Ⅳ-order salt rhythm based on Ⅰ-,Ⅱ-and Ⅲ-order salt rhythms which were determined previously and got to know that the sedimentary process following the sequence of desalinizing→salinizing and crystallization of salt minerals from halite rock→(mud-bearing) glauberite rock→dolomite-bearing mudstone (mud-bearing doloston)→mudstone→doloston→glauberite rock→halite rock. The authors also analyzed the Ⅳ-order salt rhythm and the correspondence between its sedimentary records and the fluctuation of the palaeosalinity of waters and the short-scale (0.05~1.0 ka duration) change of dry-moist palaeoclimate.

本文以我国东部独具特色的古近纪古盐湖盆地－江汉盆地的潜江凹陷潜江组盐韵律为例，通过对王平1、王云10-6、王80-2等3口井连续取心段的精细研究，在前人划分Ⅰ、Ⅱ、Ⅲ级盐韵律的基础上，首次划分出组成含盐层系基础韵律单元－Ⅳ级盐韵律，弄清了它的沉积过程基本遵循从石盐岩→钙芒硝岩→含白云石泥岩→泥岩→白云岩→钙芒硝岩→石盐岩的淡化－咸化序列和盐类矿物的析出顺序；解析了Ⅳ级盐韵律及其沉积组合记录与水体古盐度波动和短尺度(0.05~1.0 ka)古气候干湿变化之间的对应关系。

Since the force ar each point can be determined, the forces on its surface can be mapped and the shapes of objects graped in the robot hand can be determined respectively.

因为每一点的力都可以检测出，受力的曲面可以绘出，握在机器人手上的物体的形状可以相应地确定。受力的数据可以显示在屏幕上。

He sample is dissolved in a mixture of nitric acid and potassium chlorate.The determinations of Te,Bi,Fe and Cu are performed on a flame atomic absorption spectrophotometer.The selenium is determined photormetrically with 3,3'-diaminobenzidine,and the sulfur is determined gravimetrically as barium sulfate,precipitated frorm an EDTA-citric acid medium.

辉碲铋矿物经HNO＿3－KCIO＿3溶解，用火焰原子吸收法或乙二胺四乙酸二钠络合滴定法测定Bi，火焰原子吸收法测定Te、Fe、Cu，3，3＇二氨基联苯胺光度法测定Se，硫酸钡重量法测定S。

The chemical constituents of extracts of Tamarindus indica L were determined by GC-MS. The relative contents of constitutes were determined by area normalizing method. 48 compounds were identified, amounting to total mass fraction 98.5%. The main compounds were 5-methyl-2(3H)-furanone, diethyl succinate, furfural, hexadecanoic acid, linolenic acid, 5-methylfurfural, oleic acid, linoleic acid, etc.

并利用气相色谱仪-质谱仪对罗望子萃取物的化学组成进行了分析鉴定，并用面积归一化法测定了各种成分的质量分数，共鉴定了48种成分，占总质量分数为98.35%，其中主要成分为：5-甲基-2(3H)-呋喃酮、丁二酸二乙酯、糠醛、十六酸、亚麻酸、5-甲基糠醛、油酸、亚油酸等。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了