Through combination of multi-beam coherent light for interference exposure with, the obtained patterns are independent of the longitudinal position z of substrate and they appear a periodic relation with position x and position y in the interference field. 用多束相干光适当组合干涉曝光,得到的图形与基片在干涉场内的纵向位置z无关,与x、y位置呈周期关系,光的相干长度对应传统光学光刻的焦深。
In the paper, it narrates the cause of limitation of the application of transverse wave reflection method and the measures taken for the longitudinal wave reflection method in this district to suppress the interference and enhance the resolution and good results are obtained. 文中叙述了横波反射法在三元里地区应用受限的原因及纵波反射法在本地区为压制干扰、提高分辨率所采取的措施,使P波反射法勘探取得了好的效果。
Application of the methods of longitudinal contrast, lateral contrast, similar contrast, correct and error contrast, before and after contrast, left and right contrast can improve the efficiency of basketball teaching, promote the obverse transfer of the skills and prevent interference. 运用纵向对比法、横向对比法、相似对比法、正误对比法、前后对比法和左右对比法等方法,能够提高篮球教学效率,促进技术的正向迁移,防止干扰。
The test section with slotted walls can effectively not only reduce longitudinal but also lateral wall interference; 开槽壁不仅对减小纵向洞壁干扰有效,而且对减小横向洞壁干扰同样有效;