In this paper, direct platemaking technology is briefed, frequency modulated half tone dot technology (principles, characters and technologics) is emphasized.
本文简述了直接制版技术，着重叙述了调频网点技术，包括原理、特点及技术。
In the printing process, a continuous tone picture image in the original is converted in a half tone image on the printed material by using screen dots printing technique.
印刷工艺过程中，原件上的连续调画面是通过网点印刷技术转换成印刷制品上的半色调影像的。
A new method to detect laser mode by using half-tone processing technique is presented.
本文提出了利用半色调处理技术检测激光器模式的新方法。
Moire pattern: Undesirable pattern caused by incorrect relative screen Angle of two or more half-tone plates.
撞网图案：两块或多块半色调印版因相互的网线角度不配合而造成的不适当图案。
Magenta contact screen: A type of contact screen in magenta colour. It is used for making half-tone from black-and- white original only.
洋红接触网片：摄制半色调图片用的洋红色接触网片，它只适合黑白原稿用。
Bump exposure: Method of increasing highlight contrast when producing a half-tone by removing the screen briefly to remove any dots in the highlight area.
无网曝光：是增加半色调图片的光部对比的方法。摄制时把网片除下作短时间曝光使光部的网点消失。
Linen screen a special effect half-tone screen giving a linen texture to the picture.
布纹网片特别效果的半色调网片，它使图片有着麻布纹理。
Wash drawing: a drawing made by a brush in washes with a single pigment of black or dark colour soluble in water, to be reproduced by the half-tone process.
水墨画：用毛笔沾溶于水的黑色或深暗颜色绘画有浓淡色调的单色画。复制时，需用半色调方法。
Hard dots Half-tone sots produced either by contact or by direct laser scanning. See Soft dots.
由接触复制或由激光直接扫描而得的半色调点子。参阅软点。
Soft dot: Half-tone dot with soft halation or fringe around it, AS oppsed to a hard dot which is very sharp and without fringe.
软点：有着淡色晕光或边缘的半色调点子。有别于十分清晰，并无淡边的硬点。
Soft dot: Half-tone dot with soft halation or fringe around it, AS oppsed to a hard dot which is very sharp and without fringe.
软点：有着淡色晕光或边缘的半色调点子。有别于十分清晰，并无淡边的硬点。
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