the visual property of being without chromatic color
The SNR, the antenna condition and the Bragg condition as well as achromatism in optical design are discussed. 讨论了在光学设计中的信噪比要求，天线条件，色差兼容和布喇格条件。
As compared to common compensators, this compensator is convenient to operate,and has a high degree of accuracy and a good nature of achromatism. 给出一种新的三元复合式消色差补偿器,该补偿器具有调节方便、精度高、在一定波长范围内消色差性能良好等优点。
From the characteristic of harmonic relief patterns,the athermalization and achromatism of harmonic diffractive element have been studied in the paper. 从谐衍射元件的理论出发,讨论了谐衍射透镜在消色差和消热差时的特性。
The influence of input beam size on the maximum intensity in the focus of singlet lens and achromat was compared. 比较了消色差透镜及单透镜中脉冲初始光腰尺寸对聚焦的影响.
Ms.Feng selects and purchases when the floor pays great attention the achromatism and the superficial texture consistency excessively, this is an erroneous zone similarly. 冯女士选购地板时过分注重无色差和表面纹理的一致，这同样是一个误区。