谱

In order to measure the tuning wavelength of a frequency-doubled Nd:YAG laser,strong absorption lines of molecular iodine near 532nm was adopted to provide the absolute reference for frequency stabilization.

为了精确测量倍频Nd：YAG激光器的调谐波长，采用碘分子在532nm附近的强吸收谱线作为频率稳定的绝对参考谱线，建立了以碘蒸气为标定物的激光调谐波长测定系统，实际测量了碘蒸气吸收谱线。

HPLC was coupled with both mass spectroscopy and ultraviolet absorption spectroscopy for simultaneous separation and characterization of the products from glow plasma reaction of chloroform.(3) Phosphorus pentachloride has been used to perchlorinate acenaphthene under moderate pressure and temperature in sealed reaction vessels.

在此基础上，以反相C〓柱为固定相，甲醇/乙醇/环己烷为流动相，采用梯度洗脱的方法，对氯仿辉光放电合成产物进行高效液相色谱-紫外光谱-质谱联用分离分析，成功的分离得到包括富勒烯C〓和全氯代碳簇在内的数十种产物，并得到了相应的质谱和光谱数据。

Using the OMA optical multi-channel spectrometry , CCD(1152×1242) camera detect equipment and achromatic aberration camera lens for spatial distinguishing, we carried out the experiments to measure the one- dimension fine structure spectrum of 20 harmonics,and then investigated primarily the measurement system of scattering light.

实验采用OMA光学多道分析谱仪(谱分辨0.1nm )加CCD1152(1242相机探测设备，用消色差的相机镜头作为空间分辨，测量20谐波的一维精细结构谱，对利用散射光测量系统进行了初步探索研究。

Lines of tunable output are obtained, the energy of 18 lines is more than 10 J. In the rapidly trigging experiment, the tunable outputs of two random lines among the whole CO2 laser spectrum and two adjacent lines in the same transition band are realized respectively in 60 ms and 20 ms.

实验共得到85条调谐输出谱线，单脉冲能量超过10 J的有18条谱线；在动态快速触发情况下，分别在60 ms和20 ms内实现了整个CO2激光光谱范围任意两条谱线和同一个跃迁带内相邻两条谱线的快速调谐输出。

Two novel well-defined star-graft copolymers with poly as main chain are successfully prepared by combination of anionic and atom transfer radical polymerization. Anionic copolymerized 2,5-epoxypropyl-1-ethoxyethyl ether with EO by initiation of mixture of diphenylmethylpotassium and polyol [1,1,1-trispropane or pentaerythritol] to give the well-defined three-arm star poly and four-arm star poly.

用核磁共振(~1H NMR)、红外光谱、元素分析、气相色谱—质谱、凝胶渗透色谱和基质辅助激光解吸附电离飞行时间质谱(MALDI-TOF-MS)等手段对中间产物及最终产物进行了详细地表征，证明了这种合成聚醚为主链的接枝共聚物的方法是可行的，并且是成功的。2。

The peakpositions of the TPA spectra of this series of compounds are located at ～950 nm, and thecorresponding maximal TPA cross-section has been measured to be as large as〓.

双光子吸收谱的谱形与线性吸收谱相应波段内的谱形相似，与线性吸收的峰值波长的两倍相比较，双光子吸收峰值波长有微小蓝移。

At the basis of them, In this paper, by calculating adjacency characteristic polynomial, the number of closedcircuit, using the property that bipartite graphs with same Laplacian spectrum must be Line-cospectral and the property of graphs with the same eigenvalues and angles to study some non-regular graphs with special structure.

在前人的基础上，本文通过计算图的邻接特征多项式，闭路数目，利用二部图同Laplacian谱必Line-同谱的性质，以及有相同特征值和角的图的一些特点来研究一些特殊结构的非正则图的谱确定问题，得到了如下一些结论：(1)两个不同构的C_(n_1，(n_2)，(n_3)，(n_4)图没有相同的邻接谱。

Development of new analytical techniques using modern instrumentation and digital computers, and the applications of these techniques in areas such as environmental, clinical, and forensic chemistry.

本实验室研究的范围，主要是利用质谱术进行各项研究。即利用气相层析质谱仪，液相层析质谱仪，串联质谱仪(GC/MS/MS；LC/MS/MS)的特性发展应用於环境科学、临床科学、情治科学等微量分析，如环境科学样品泥土中微量残留农药之侦测，及农药分解物结构之鉴定和流布情形之探讨。

The results indicate that the serpentine cat's-eye mainly consists of chrysotiles, which show the characteristic diffraction lines d(subscript 202, 006)=0.2446nm (I/I0=29) and d(subscript 202, 006)=0.2451nm (I/I0=27) in the XRD pattern; two absorption bands near 3600~3690cm^(-1) and three characteristic IR absorption bands around 960~1100cm^(-1) and one weak shoulder absorption band in the IR patterns.

结果表明，四川蛇纹石猫眼的主要组成矿物为纤蛇纹石，具有斜纤蛇纹石d(下标 202。 006)=0.2446nm(I/I0=29)和d(下标 202。 006)=0.2451nm(I/10=27)X射线粉晶衍射的特征谱线；在960~1100cm^(-1)间红外图谱分裂成3个明显的谱带，570cm^(-1)附近的红外谱带以肩状出现，在3600~3690cm^(-1)的高频区出现两个谱带。

In order to study the relatively intensity of Zeeman effect split spectrum line, the quantum number distribution and the relatively intensity are presented in detail by the analysis of Hg(546.1 nm) spilt spectrum line in the external magnetic field; the image of coherence circle is obtained by CCD, and the intensity of image is analyzed, the relatively intensity of the spilt spectrum line by image disposed is close to the theoretical result. It is concluded that the phenomenon and rule of Zeeman effect can be analyzed by CCD image technology.

为了研究塞曼效应分裂谱线的相对强度，分析了Hg(546.1nm)谱线能级在外磁场中的分裂情况，详细给出了分裂能级的量子数分布和理论相对强度；在此基础上采用CCD拍摄了分裂谱线干涉圆环的图像，并对其进行了强度分析，通过图像强度处理得到各分裂谱线相对强度与理论分析结果十分接近；表明采用CCD图像技术能较好的分析塞曼效应现象和规律。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。