在拍摄模压全息母版时,由于记录时间较长,那么干涉条纹随机漂移的影响将会变得十分严重,使全息图片质量下降。
In taking a master of embossing hologram, the movement of interference fringe will lower the quality of hologram during long time exposure.
研究结果表明,材料的氧指数、烟密度与炭化剂的用量成正比,而起始膨胀时间与炭化剂的用量成反比。以直接模压成型方法制得的材料膨胀性能较好。
It was found that its oxygen index, smoke density were directly proportional to content of carburizer whereas its initial expanding time was inversely proportional to content of carburizer.
利用全量子理论,在相互作用绘景中研究了两个耦合二能级原子与单模压缩相干态光场相互作用系统粒子布居几率的时间演化规律;
The atomic population evolution vs. time in the system of two two-level coupling-atoms interacting with squeezed coherent light field is investigated.
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