研究了对干扰前不同图像质量的合成孔径雷达(SAR)的干扰效果问题。
This paper studies the jamming effect of SAR with different pre-jamming image quality.
因此，要获得合格的螺纹，功丝前的预孔径尺寸要一定控制得相当精确；
It causes the thread profile as shown in figure C. Therefore, it is important to control the hole diameter accurately to get qualified threads.
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