The outer drum-type photo typesetter for four-channel or multi-channel laser modulation anisotropism, in the image when film to some serious may form a moire hapalogenys forplanar.

 
  • 边鼓型照排机其四路或众路激光调制不平衡的话,在成像时软片的图像局部不离不定酿成惨轻的歪条形龟纹。
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