波段

The results derived by the two methods are consistent with each other. At the same time the long-term variability mechanisms were also discussed. Finally the colour index of

同时我们讨论了长周期光变的几种可能机制，最后求得了NGC4151不同波段之间的色指数。

The former has been proved to be the result of scattering propertiesand fluorescence of the cornea and lens,while the latter has been interpreted by thepresence of another pigment with its maximum sensitivity at rather longer wavelengthin the retina or t...

前者已证明主要是由于角膜和水晶体的散射和萤光特性，后者可能是由于网膜内包含另一种敏感峰偏长波段的色素，或在暗视条件下有明视系统参与活动。

It is very difficult to realize expanding the working band of Hartmann-Shack wavefront sensor through Frequency Transfer of Nonlinear Optics. Usually three wave-mixing researches are based on plane wave or Gauss wave, so study of aberrated second harmonic generation is new and important. It could be very helpful to understand and make good use of the Frequency Transfer of Nonlinear Optics.

这说明利用非线性光学频率变换方法拓宽波前传感器件的响应波段是很难实现的，但是，通常三波相互作用过程的研究均是建立在平面波和理想高斯光束之上，因此我们对于位相畸变倍频过程的研究是非线性光学领域一个重要而有意义的新课题，它有助于人们更加深入理解非线性光学效应，为进一步合理利用之奠定了理论和实验的基础。

The main results and conclusions can be organized as follows:(1) The alkaline-earth aluminates and silicates, which can emit the light from violet to red with long afterglow, are prepared by the different methods such as solid-state reaction, sol-gel, and combustion synthesis, etc.

获得了从紫色到红色所有可见波段的长余辉材料，通过对铝酸镏的基体元素比例、合成工艺和共掺杂元素的研究，使SrAl〓O〓：Eu〓，Dy〓的有效余辉时间大大增强，很容易突破30小时。

It emphases anatomised modularisation design of power module and index of reliability in this transmitter.

介绍了一种L波段机载SAR发射机的设计，对发射机的系统组成、关键技术及可靠性都做了详细阐述，重点剖析了发射机的模块化功放组件设计及可靠性指标。

A new structure of two area cathodes applied in W-band Gunn diodes was introduced and made.

介绍了一种新型的双区阴极结构在W波段体效应二极管中的实现，并研制出了样品器件。

By observing Cepheids with very similar properties at near-infrared wavelengths in all seven galaxies, and using the same telescope and instrument, the team was able to more precisely calibrate the luminosity of supernovae.

通过很相似的方法，在全部7个星系中用相同的望远镜和仪器，在近红外波段观测造父变星和超新星，团队能够更加精确地校准Ia超新星的光度。

The device is made up of two sections: a cascaded antialiasing + switched capacitors 8th bandpass filter for precise RDS band selection and a demodulating section that performs the extraction od RDS data stream and clock, to be further pro- cessed by a suitable RDS decoder.

该装置是由两部分组成：一层叠抗锯齿+开关电容器用于精确RDS的波段选择第八带通滤波器和解调部分，它执行外径RDS数据流和时钟提取，将进一步支持处理过的由一个解码器适合铁路发展策略。

The exposure and processing of the first record is optimal for imaging of both conifers and hardwoods.

对于针叶树类和润叶树类的成象来说，第一波段的曝光和加工都是效果最优的。

Anton. Brunner:"Possibilities of dimensioning doubly curred reflectors for azimuth-search radar antenna",IEEE,AP-19,NO1, 1971.1, PP52-57

图5为L波段大型低副瓣雷达天线在外场检飞时的实物图，该雷达已设计定型，目前已批量生产。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。