光度计的

DNA extraction quality of Venturia inaequalis using CTAB method,SDS method,Parker's method and modified SDS method was detected by ultraviolet spectrometer.

采用CTAB法、SDS法、Parker法及改进的SDS法提取苹果黑星病菌的DNA，经紫外分光光度计测定，改进SDS法提取的DNA得率较其他3种方法高，约为Parker法的2倍。

The author seeks after an effective way to retrieve aerosol optical depth for urban area with dense population and industrialization. Three-level remote sensing monitoring ""Satellite -airborne - surface"" was ideated with MODIS, OMIS and sun-photometer to retrieve urban aerosol optical depth. In the paper, the author compared three AOD retrieval methods and analyzed the applicability and limitation of each method, including ground-based remote sensing with sun-photometer.

本文针对人口密集、工业化程度高的城市区域范围，探索高光谱数据遥感反演气溶胶光学厚度的方法，应用中科院上海技术物理研究所自行研制的模块化成像光谱仪，结合MODIS卫星资料和地面太阳光度计监测，试图形成&星载—机载—地面&三个高度立体遥测，实现城市气溶胶光学厚度的反演，并进一步研究其环境效应。

NOTE—Either absorbance or transmittance measurement may be used for preparing inocula.

在一个相当狭窄的频率波段中测量透光率要求一个适合的分光光度计，其光源的波长可以改变或者限制通过使用580nm或者530nm的过滤器来读取在管试验中。

Nitrogenase activity of nitrogen-fixing bacteria was measured by acetylene reduction assay combined with gas chromatography.

运用乙炔还原法测定了固氮细菌的固氮酶活性，通过测定菌落周围产生的透明圈和混浊圈大小对磷细菌的溶磷活性进行比较，采用火焰分光光度计测定了钾细菌的解钾活性。

By using AAS and XRF, the contents of Cr, Pb, Mn, As, Se, Hg, Cd, Zn in raw coal, bottom ash and fly ashes are measured quantitatively in a 220 t/h pulverized coal boiler. Factors affecting the distribution of trace elements are investigated, including fly ash diameter, furnace temperature, oxygen content and trace elements' characters. The coefficient of Meij is also improved to more directly show element enrichment in combustion products. Elements may be classified into three groups according to volatility features of trace elements.

采用原子吸收分光光度计和X射线荧光光谱仪，定量测定了电厂煤粉炉中原煤、底渣、飞灰中Cr、Pb、Mn、As、Se、Hg、Cd、Zn等微量元素的含量，分析了飞灰粒径、炉膛温度、炉内含氧量、微量元素自身性质对微量元素赋存、挥发特性的影响，并根据元素的挥发特性将元素进行分类，得出表征微量元素排放特性的3种数值，并与我国和欧盟垃圾焚烧微量元索排放标准相对照。

Compared photometric characteristic measurement photometer with CCD measurement, adopted the method about star comparison, and obtained the stellar magnitude data of space target.

比较了空间目标光度特性光度计和CCD测量的两种方法，并采用恒星比对的方法，得到了空间目标的星等数据，实验结果表明两种测量方法星等精度相当，但CCD测量可以在白天测量空间目标的光度特性。

Using PAP and ABC methods and microspectrophotometry, the regularities of developmental changes and characteristics of the distribution of leucine-enkephalin-like immunoreactive components in the spinal cord of the human foetuses (52 cases) and neonates (2 cases) have been examined.

用PAP和ABC法，观察了亮氨酸-脑啡肽样免疫反应成分在52例胎龄为8-39周的人胎儿和2例新生儿脊髓的分布状况，并通过显微分光光度计对分布密度进行了量的变化的分析。

The dissertation deals with the gemology and relative spectroscopy of these rubies by using the conventional gemological methods and the modern instruments of EMPA, scanning electron microscope, electron paramagnetic resonance, infrared Fourier transform spectroscope and laser Raman spectrometer.

本文采用常规的宝石学研究方法以及电子探针、扫描电子显微镜、电子顺磁共振、傅立叶变换红外光谱仪、拉曼光谱仪、紫外可见光分光光度计等现代测试仪器，对元江红宝石的矿物宝石学特征进行了系统的研究，并结合晶体场理论分析元江红宝石的致色机理。

The scattering spectra of this system were measured using an ordinary spectrofluorophotometer. Influence of experimental conditions, such as pH, ionic strength, and concentration of CAS, on the intensity of light-scattering was studied. Effects of surfactants (cationic, anionic, and nonionic), amino acids, and metal ions on the combination of CAS with protein were also investigated.

用普通的荧光分光光度计测量了这一体系的散射光谱，研究了pH，离子强度和试剂浓度等实验条件对散射光强的影响，考察了阳离子、阴离子和非离子表面活性剂以及氨基酸和常见金属离子对反应体系的作用。

Density , color meters and spectrophotometers is the most commonly used color printing measurement instruments,Their color reproduction process control provided important information, But those portable device are expensive,and they do not have on-line testing functionality.

密度计、色度计和分光光度计是目前印刷中最常用的颜色测量仪器，它们在颜色复制的过程控制中提供了重要的信息，但这几种便携式测试仪，多为价格昂贵的进口专用设备，且不具备在线检测功能。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。