辐射

For example, in the design of antenna, it is always involve the imaginaries Bessel function, so these work are belonged to the base research work, but it is important.

本文对各向异性介质偶极天线辐射场的数值计算的研究以及各向异性介质波参数的数值计算的研究目前还没有文献系统介绍，但这些内容对进一步研究探地雷达辐射场的规律是必不可少的，尤其是传播常数，它在探地雷达的研究中仍然是一个非常重要的公式，对其的深入研究有利于对探地雷达资料的正确解释。

At BESSY,ten elliptical undulator beamlines are operating in the VUV and soft X-ray range,which enables the polarisation state of the synchrotron radiation to be changed from linear to left-or right-handed circular.

在BESSY同步辐射装置中，有10条椭圆波动器光束线，这可使同步加速器辐射的偏振态从线偏振光转变为左旋或右旋圆偏振光。

The Universe has no spatial boundary according to the standard Big bang model, but nevertheless may be spatially finite.

它也可以从宇宙微波背景辐射是大爆炸刚发生不久所产生出非常稀薄的辐射而证实。

The works in the project just done can be summarized as five respects.(1) A device was designed to fabricate the asymmetrical resonant cavities by a pendant drop. A series ARCs with variable parameters provides a valuable experimental method for investigating the characteristics of ARCs.(2) The relationship between the number of active modes and the shape parameters in an ARC was investigated. The experimental lasing threshold was compared with theoretical result, the good agreement between two shown that it was the decrease of the number of active modes in an ARC that decreased lasing threshold.(3) Dye lasing gain was used to enhance the signals of stimulated Raman scattering of the weak gain Raman modes in a circular cavity made by a pendant drop, the instantaneous SRS spectra of weak gain Raman modes in ethanol was obtained by this new method.(4) The SRS signals of minority compound in a binary chemical complex was obtained by using dye lasing gain method. The detection concentration of minority compound was reduced to an order compared with normal SRS method.(5) A cylindrical circular cavity was formed by a liquid jet, which was used to reduce the pump intensity required for laser induced plasma spectroscopy. The limit of detection of trace element in aqueous sample was greatly decreased by this new method.

我们设计并成功制作了使悬垂液滴连续变形的装置，用此装置可以方便地改变非圆对称谐振腔的几何参数，为ARCs的研究提供了一种有效的实验方法；研究了ARCs中活性模式数和变形参数间的变化规律，激光阈值的数值计算结果和激光辐射的实验结果作了比较，二者吻合的曲线说明ARCs中活性模式数量的减少是受激辐射放大阈值降低的原因；在由单元化合物构成的微型圆对称谐振腔中，首次尝试用"激光增益"增强弱增益拉曼模式的受激拉曼散射信号，获得了乙醇分子中弱增益拉曼模式的瞬态SRS光谱；在由二元混合物构成的微型圆对称谐振腔中，用染料的激光增益增强了少量化合物的SRS信号，把少量化合物的SRS信号探测浓度降低了近一个数量级，在SRS应用于瞬态过程的组份分析方面做了卓有成效的探索；用石英毛细管形成的稳定液拄构成拄形谐振腔，降低了激光诱导等离子体光谱需要的激励能量，有效地降低了水相样品的痕量元素分析极限，为LIPS应用于微量元素的化学分析开拓了一条新的技术路线。

As we improve our knowledge on radiation protection, we are more interested in the impact of radiation on biota in the surroundings.

随着辐射防护理念的发展，环境中生物所受到的辐射影响日益引起人们的关注。

Chapter 1: The commonly used methods of high temperature measurement are introduced simply. The law of black body radiation which radiation thermometry depends on is elaborated. Based on this theory, the merits of colorimetric temperature measurement are introduced.

第一章：简单介绍了高温测量的常用方法；阐述了辐射测温系统的理论基础黑体辐射定律，并在此理论基础上介绍了比色测温原理以及比色测温的优点；最后还给出了系统的工作流程。

When the temperature is 16.7～28.3℃, which is close to the most suitable temperature, the radiation absorption of the tomato is closer to ideal black body radiation.

而在接近番茄生长发育的适宜温度的16.7～28.3℃环境下，番茄吸收辐射更接近理想的黑体辐射；番茄的气候空间变化趋势与D。

You could also include an account of how Planck was led to discover quantum mechanics in the first place, or of how the spectrum of black body radiation appears in the cosmic three degree background radiation.

你的阐述也应该包括普朗克如何在前期发现量子力学，或者黑体辐射光谱是如何在宇宙三度背景辐射中呈现出来的。

With the present lasers, X-ray microscopy can be made using narrow band emission or black body radiation from laser plasmas.

就目前的泵浦激光条件，采用窄带辐射和黑体辐射可进行水窗波段X光显微成像的实验研究。

After a careful solution of the movement equation of particles as well as the Klein-Gorden equation in curved space-time, and the analgesic continuation of out going wave in the complex number r plane, it reaches a conclusion that the radiation spectrum of black hole is rigorous black body radiation spectrum.

通过对弯曲时空中粒子的运动方程克莱因—高登方程的求解，并将出射波解在复平面做解析延拓，得出黑洞的辐射谱为严格的黑体辐射谱[1-2]。

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。