The element in an electrostatic document copying machine that is sensitive to light and on which the latent electrostatic image is formed.
在静电文件复印机中，利用光敏作用形成静电潜象的一种元件。
In a document copying machine, a means by which parts of the image of the original is obscured so that it is not produced onto the copy material.
文件复印机上使用的一种方法，将原件映象的某一部分掩盖起来，使其不复印到复印件上。
In a document copying machine, a device for adding to or masking details from an original so that these are incorporated into or deleted from the copies.
在资料复制机中，一种用于给原文件中增加或从原文件中屏蔽某些细节的设备，因而可以给复制件加进或删去一些细节。
In a document copying machine, a device for adding to or masking details from an original so that these are incorporated into or deleted from the copies.
在资料复制机中，一种用于给原文件中增加或从原文件中屏蔽某些细节的设备，因而可以给复制件加进或删去一些细节。
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