黑白相纸

  • 网络blackwhite paper
黑白相纸黑白相纸
  1. 应用黑白相纸中银的测定,相对标准偏差为1.1%~1.6%,回收率为:97.7%~98.2%。

    The method has been used to determine silver in photographical paper samples with the RSD of 1.1 % ~ 1.6 % and the recovery of 97.7 % ~ 98.2 % .

  2. 用白报纸把它包起来。普通黑白活页摄影相纸

    Wrap it up in newspaper . black and white photographic sheet papers for general use