查询词典 aberration

The theories of cuneiform prism and series neutral glass slices used as laser attenuator are analyzed in this paper. An aberration-free laser quantitative attenuator made of cuneiform prism is adopted and a series of neutral attenuated slices are used for adjusting laser-beam enegy at the same time.

分析了楔形镜和中性玻璃衰减片组对光束的衰减原理，采用反射式楔形镜作为无像差定量衰减器，并同时使用中性玻璃衰减片组微调光束能量。

As a singlet curved lens is impossible to correct all the five primary aberrations regardless it is made of PIMs or NIMs, the primaxy-aberration-free lens systems composed of two thin lenses or two thick lenses based on the use of NIMs are intentionally presented.

由于只靠单块曲面透镜是无法同时消除全部五种初级像差的，因而我们接着研究了由负折射率介质构造的能同时消除全部五种初级单色像差的双薄透镜组合系统和双厚透镜组合系统。

The optical phase conjugation technique realized by stimulated Brillouin-scattering can be used to compensate the aberration, and by this way, the laser beam can be focused onto a distant target.

利用受激布里渊散射效应实现的光学相位共轭技术可以补偿这种畸变，使激光会聚到远处的目标上。

Digital laser plane interferometer is used to measure the surface of optical components and the wavefront aberration of non-confocal optical system.

数字式激光平面干涉仪是用于测量光学元件面形和无焦光学系统波像差的光学仪器。

In this paper, the aberration correction principles of the gratings and their applications in the areas of vacuum ultraviolet, soft X ray, high resolution photoelectric detectors, surface metrology and optical fiber communication is described.

本文从VLS的像差校正原理出发，较全面地阐述了VLS在真空紫外和软X射线、高分辨率光电探测器、表面干涉计量以及光纤通讯等领域的应用，并针对其技术特点指出了它的发展趋势。

A study was carried out to investigate effects of cadmium stress on growth of rice seedlings, mitosis and chromosomal aberration of root tip cells.

研究了镉对水稻幼苗生长、根尖细胞有丝分裂及染色体畸变的影响。

All these results suggest that Cd obviously retards mitosis and induces chromosomal aberration in root tip cells of rice seedlings.

研究表明，Cd对水稻根尖分生细胞有丝分裂具有阻滞作用，并诱发染色体畸变率的显著升高。

Currently, in the United States, the latest technology has been available up painting, which uses DuPont Quick-drying paint technical approach, on the basis of the original step further, Used for drying time and saves more than 10 minutes, has clearly reached a quick fill purposes, and can effectively prevent chromatic aberration.

目前，2003在德国，最新的补漆技术已经面世，这种使用德国光谱快干漆的技术手法，在原来的基础上更进一步，用于干燥的时间又节省了10多分钟，已经明显达到了快补的目的，而且能够有效避免色差。

Currently, in the United States, the latest technology has been available up painting, which uses DuPont Quick-drying paint technical approach, on the basis of the original step further, Used for drying time and saves more than 10 minutes, has clearly reached a quick fill purposes, and can effectively prevent chromatic aberration.

目前，在美国，最新的补漆技术已经面世，这种使用美国杜邦快干漆的技术手法，在原来的基础上更进一步，用于干燥的时间又节省了10多分钟，已经明显达到了快补的目的，而且能够有效避免色差。

In intersatellite communications, wave front aberration is main factor in affecting far-field behavior of signal beam.

星间光通信中，波前畸变是影响信号光远场特性的主要因素。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。