查询词典 achromatic aberration

The doses estimated by accident reconstruction were about 30,30and 20 R and the doses estimated with chromosome aberration were about 46,26 and 26 rads respectively.The results obtained by above two methodsagreed quite well.In accident 2,all 8 cases of exposed workers...

在事故2中，受照者8人，均佩有胶片剂量计，其剂量记录从1.6到20伦不等；用染色体畸变方法，以无着丝点畸变和击断率为指标，在计数200和500个左右的细胞时，用我们实验室所作的刻度曲线，分别进行了剂量估算；结果表明，在较低剂量的~(60)Coγ射线照射事故中，当计数500个左右的细胞时，上述&生物剂量计&仍有一定的参考价值。

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。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。