raster graphics element 光栅图形元素
The interactive extraction of raster element and rasterization of vector becomes the kernel of this technique.
光栅图元的交互提取和矢量图形的光栅化过程是这一技术的核心。
The relief structure of diffraction optical element can be written precisely but very slowly with the raster scan mode bye-beam.
用电子束逐行扫描方法刻蚀衍射光学元件的浮雕结构精度高而速度低。
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