查询词典 spectrum

When heated to incandescence in the furnace of stars, each element marks the spectrum of light it emits with a characteristic set of lines.

当在众多星状物组成的熔炉中被加热到白热程度时，每一个元素都以其特有的一组谱线显示出它所放出的光谱。

"When heated to incandescence in the furnace of stars, each element marks the spectrum of light it emits with a characteristic set of lines" Malcolm W.

"当在众多星状物组成的熔炉中被加热到白热程度时，每一个元素都以其特有的一组谱线显示出它所放出的光谱"

The scaling effect on transmission spectrum with increasing Fibonacci sequence is obtained at the quarter-wavelength optical thickness.

计算了随Fibonacci序列长度而变化的标度因子，并用FDTD模拟证实了表面等离子模场的局域性。

There are three categories of maturity indicators of organic matter in current petroleum industry to evaluate the degree of thermal evolution for source rocks, including: 1 optical indicators, i.e., vitrinite reflectance, bitumen reflectance, sporopollen color and thermal alteration index, conodont color alteration index, and reflectance of fossil fragments; 2 chemical indicators, i.e., the maximum temperature in pyrolysis of organic matter, methyl phenanthrene indicator, the atomic ratio of H/C, carbon isotope indicator, and biomarker indicators; 3 indicators of spectroscopy, i.e., the free radical concentration of kerogen, the average structural scale of aromatic nucleus of kerogen, and the laser-Raman spectrum of organic carbon.

摘 要：当前常用的有机质成熟度指标包括3大类：1 光学指标，包括镜质体反射率、沥青反射率、孢粉颜色、热变指数(thermal alteration index， TAI)、牙形石色变指数(color alteration index， CAI)和生物碎屑反射率；2 化学指标，包括有机质最大热解峰温度、甲基菲指数(methyl phenanthrene indicator， MPI)、H/C原子比值、碳同位素指标和生物标志物指标；3 谱学指标，包括干酪根的自由基浓度、干酪根芳核平均结构尺寸和有机碳激光拉曼光谱。

The formula of the increment of secondary spectrum which brought by the increment of refraction index and dispersion of glass were deduced.

推导了折射率、色散变化量所引起的光学系统二级光谱的变化量公式。

Based on IR spectrum and HPLC chromatography, four polysacchharides had β-indican and characteristic absorbance of glucide without vitriol radical, galacturonic acid and acetyl.

红外光谱和其完全水解的高效液相色谱分析表明，4种多糖不含硫酸基团和乙酰基，具备β-糖苷键以及糖类特征吸收峰。

Is the term used for the actual colour of the spectrum: red, orange, yellow, green, blue, indigo or violet.

一词是用于实际的频谱颜色：红色、橙色、黄色、绿色、蓝色、紫色或靛蓝。

Designed the control system based on ATmega 16 according to the requirement of inductively coupled plasma spectrum instrument.

针对电感耦合等离子光谱仪控制要求，设计了以ATm ega 64为核心的控制系统，给出了相应的控制方案和器部件选型，并提出软件的模块化设计。

And the details of the spectrum of infra-red radiation given off by a speck of dust will betray its composition.

通过对少量尘埃放射的红外线进行光谱分析，就可以得到尘埃的构成成分。

A device for converting electromagnetic radiation in the infra-red, visible and/or ultra-violet regions of the spectrum into an electric current .

一种把下述光谱范围内的电磁辐射转换成电流的装置：红外线、可见光和／或紫外线。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。