查询词典 diffraction spectroscope

The ideal quantum gases obey Bose-Einstein or Fermi-Dirac statistics and the flux can be derived from the known distribution function. In this sense, we develop the kinetic schemes that suitable for ideal quantum gas and investigate the influence of the quantum effect. In this thesis we discuss shock tube problems and shock diffraction by wedges and shock diffraction by cylinders for the ideal quantum gases.

理想量子气体之速度分布依循Bose-Einstein或Fermi-Dirac分布，在已知气体分布函数的情况下，对分布函数取矩可得宏观量及其通量，本文即利用此概念发展适用於理想量子气体之气体运动算则，并探讨量子效应造成之影响，本文探讨理想量子气体之震波管、楔形体和圆柱震波绕射问题。

The original technology is based on the far-field optical but all of them are restricted by Rayleigh diffraction limit.In order to break optical diffraction limit restrictions, people improve recording density in three ways:(1) shorten wavelength of light,(2)increase numerical aperture of the lens N.A.

不过上述储存方式所采用的记录技术皆是在远场光学的领域内，在远场光学的绕射极限下，要持续提升记录密度的方法有三种；(1)缩小光源波长(2)提高透镜的数值孔径

Microscopic characteristics of cladded crystal fiber are analyzed by X-ray diffraction, Laue X-ray diffraction and scanning electron microscopy, it is found that magnesium-ion indiffusion does not affect the single crystal structure and the domain structure of the magnesium diffused crystal fiber. It is found for the first time that MgO-rich layer in the magnesium diffused LiNbO〓 surface layer exhibits the crystal structure of an unknown compound from the Li-Mg-Nb-O ternary system and MgNb〓O〓. It is proposed for the first time that this unknown compound and MgNb〓O〓 in MgO-rich layer are the real sources of magnesium-ion indiffusion LiNbO〓. Their appearance indicate that MgNb〓O〓 is in the surface layer of MgO-rich layer, the unknown compound is in the subsurface layer and beneath where the MgNb〓O〓 is located, and these compounds have obviously preferred orientation.

通过镁离子内扩散法，首次在国内实现了具有阶跃和抛物折射率分布的c轴LiNbO〓单晶光纤和a轴Nd：MgO：LiNbO〓单晶光纤的芯—包层波导结构，为我国在该项目的研究填补了空白；建立了晶纤损耗的测量系统，提出了利用单模石英光纤作为晶纤入射光耦合器的思想；通过对晶纤损耗的测量，得到了包层晶纤比未包层晶纤损耗降低约14倍的好结果，并实现了低次模传输：对经镁离子内扩散实现包层后的晶纤的微观特性，利用X射线衍射，劳厄照相和扫描电镜表征发现，晶纤并不因镁离子的内扩散而影响其单晶结构和镁的扩散层畴的变化。

Two separate continuous monitoring stations were set near the northern and southern coast of Hangzhou Bay separately,which is typically turbid area in China coastal waters.The above-water measurement method and the American ASD portable spectroscope were adopted to measure the water surface reflectance spectrum.

在我国典型高含沙海域——杭州湾的南北岸分别布设连续监测站位，采用水面之上光谱观测方法，利用美国ASD便携式地物光谱仪测量混浊水体的反射光谱，并且同步采集表层水样获取含沙量数据。

The interaction of chalcopyrite with Na_2S_2O_3 and CuSO_4 has been studied byanalyses of infra-red spectra and electron spectroscope.

用红外光谱分析和电子能谱分析研究了Na_2S_2O_3和CuSO_4与黄铜矿的相互作用。

The visible spectrum of Mo in Ti-based alloy was analyzed by a digital spectroscope. Mo 553.31nm and Ti 551.44nm were selected as spectral lines for analysis and comparison. Samples of Ti-based alloys with different Mo contents were analyzed quantitatively. The data indicated that the ratio of intensities between analytical spectrum and comparison spectrum has a positive relationship with the content of Mo.

使用数字化看谱镜对钛合金中钼元素可见光谱进行了分析测定，选用M0553.31nm和Ti551.44nm作为分析谱线和比较谱线，对不同Mo元素含量的钛合金样品进行了定量分析探索，数据显示分析谱线和比较谱线的强度比值与Mo元素含量成正比关系。

"Mass spectroscopy A mass spectrometer uses electrical means to detect the sorted ion s, while a mass spectrograph uses photographic or other nonelectrical means; either device is a mass spectroscope."

质谱计利用电场来检测分类好的离子，质谱仪则用照相或其它非电的方法来检测；两种设备都是质谱测定仪。

"Mass spectroscopy A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph uses photographic or other nonelectrical means; either device is a mass spectroscope."

质谱计利用电场来检测分类好的离子，质谱仪则用照相或其它非电的方法来检测；两种设备都是质谱测定仪。

The application on spectroscopic analysis with spectroscope in the determination of matrix and alloy element in cobalt-based alloy was investigated.

研究了看谱镜在钴基合金基体鉴别及成分元素分析中的应用，并摄制了相应的彩色图谱。

The traditional jadeite identification methods mainly relied on refractometer,gemological microscope,Chelsea color filter and spectroscope,all these methods identified bleached jadeite is very difficult.

传统的翡翠鉴定方法，主要依赖于折射仪、宝石显微镜、滤色镜和分光镜进行检测，而所有这些方法对于鉴定处理翡翠十分困难。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。