creep line meaning in English

蠕变线
蠕流线

Employing the interlaced scanning , current tv system can compress the frequency band of tv signal effectively and facilitate transmission . but this method reduces the scanning lines of pictures and the frequency of the field . it leads the pictures displayed on tv to have such disadvantages as large area flicker , edge flicker , interlace flicker , raster visibility and creeping line etc . to satisfy people " s vision feeling better , the big - screen , multi - function and high quality tv - set have been made great progress
现行的广播电视系统由于采用隔行扫描方式，从而有效地压缩了电视信号的频带，有利于传输；但由于这种方式使得图像的扫描行数少，场频低，导致了重显的电视图像有大面积闪烁、边缘闪烁、行间闪烁、行结构可见及行爬行等。