查询词典 emission spectrum

And the only allowed Raman band in the first-order diamond spectrum near 1332 cm^(-1) decreases and can't be observed in the micro-Raman spectrum of the film. Three Raman band near 1147 cm^(-1), 1364 cm^(-1) and 1538 cm^(-1) lie in the spectrum which are similar to the reported nano-diamond films.

在该薄膜一阶微显微拉曼光谱中，1332 cm^(-1)附近微晶金刚石的一阶特征拉曼峰减弱消失，可明显观测到的三个拉曼散射峰分别位于1147 cm^(-1)、1364 cm^(-1)和1538 cm^(-1)，与己报导的纳米金刚石拉曼光谱类似。

After semi-quantitative analysis, we know that BaSan Jade is translucene-opaque, its main wavelength is 485 nm or so, and stimulatory purity is about 0.38. The color of Basan Jade is mainly reflective spectrum, and then transmitting spectrum and absorbed spectrum.

半定量计算分析认为：八三玉为不透明-半透明的玉石；主波长约485 nm，刺激纯度0.38左右；颜色主要以反射光谱为主，兼以吸收光谱和透射光谱。

This conclusion can also be proved by spectrum-warping audio watermarking algorithm in MCLT domain. To discuss further deeply on why spectrum-warping technique does not have the required robustness, the studies are carried out upon the essentials of bilinear transformation. All the theoretical analysis and experiments results put the robustness of the spectrum-warping audio watermarking under questioning.

四、提出了基于量化的变换域音频水印算法中关于量化参数的选择方法量化变换系数的音频水印算法是以修改谱分量幅值为基础，算法的主要问题是如何选择量化参数以确保算法的鲁棒性和不可感知性，另外量化系数的区域选择也会影响算法的性能。

Three kinds of mass attenuation coefficient have been used, which are the monoenergetic MAC at the mean energy of the MC simulated spectrum, the effective MAC of the Born approximation formula spectrum and the effective MAC of the MC simulated spectrum.

在密度提取中使用了3种不同的吸收系数－MC谱光子平均能量对应的单能质量吸收系数、波恩近似公式谱有效质量吸收系数和MC谱有效质量吸收系数。

The later product BPI SbF5 was identified by infrared spectrum, UV spectrum, 1HNMR spectrum and element analysis.

用1HNMR、UV、IR和元素分析对其结构进行了分析。

By adopting modern optics information processing technology and changing frequency spectrum of optical signal, zero frequency spectrum was enabled to interfere with the first class frequency spectrum.

采用现代光学信息处理技术改变光信号的频谱，使零级频谱与一级频谱干涉，从而实现由位相到强度的调制，最终检测到透明材料的位相缺陷。

Two different models of Power Spectrum, namely Kanai-Tajimi spectrum and its modified spectrum by Clough and Penzien, are discussed. The latter is more reasonable.

五、讨论了工程上两个常用的功率谱模型，即Kanai-Tajimi谱和Clough-Penzien修正的Kanai-Tajimi谱，说明后者更为合理。

The digital analysis of the three standard samples of the Al-based alloy with different content of Cu, and the probe into the quantitative analysis that employs the spectrums of Cu 510.55 nm and Fe 510.75 nm as the analysis spectrum and comparison spectrum, indicate the positive relationship between the content of copper and the intensity ratio of the analysis and comparison of spectrum.

对3种不同Cu元素含量的铝合金标准样品进行数字化分析测定，探索选用Cu 510.55nm谱线和Fe 510.75nm谱线分别作为分析谱线和比较谱线进行定量测定的方法，数据显示分析谱线和比较谱线的强度比值与Cu元素含量呈正比关系。

The above formulas are used in theM standard spectrum and the three-section standard spectrum for evaluating the tread patterns' noise to provide a simple calculating tool and line-up comparison for analyzing the frequency spectrum of tread patterns' noise .

将三者之间的变换关系应用到轮胎花纹噪声评价M标准线和三段标准谱线中，为轮胎花纹噪声的频谱分析提供了简化运算工具和排队比较方法。

The digital analysis of the six standard samples of the Al-based alloy with different content of Cd, and the probe into the quantitative analysis that employs the spectrums of Cd 508.5 nm as the analysis spectrum, Cu510. 55 nm and Fe510.75 nm as comparison spectrum separately, indicate the positive relationship between the content of cadmium and the intensity ratio of the analysis and comparison of spectrum.

对6种不同Cd元素含量的铝合金标准样品进行了数字化分析测定，探索了选用Cd 508.58nm谱线作为分析谱线，分别选用Cu510.55nm和Fe510.75nm谱线作为比较谱线进行定量测定的方法，数据显示分析谱线和比较谱线的强度比值与Cd元素含量成正比关系。

The company mainly produces all kinds of industry screening machines, food packaging machine (solid, liquid, granular, powder), and bottled beer packaging machine assembly line, as well as large-scale wind transport, dedusting equipment design and installation.

公司主要生产各种行业用筛选机、食品包装机（固体、液体、粒状、粉状）、啤酒包装机和罐装流水线以及大型风力输送、除尘设备的设计与安装。

They began to embroider little squares of cloth.

陪同他的是学校的校长，西科尔斯卡小姐。