英语词汇mechanical roughening怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	mechanical roughening
释义	mechanical roughening 简明释义机械粗加工网络释义 1 ?机械粗加工 ... 机械锤 machine hammer; hammer apparatus 机械粗加工 mechanical roughening 机械存储器 mechanical storage; mechanical bank ... 短语 1 mechanical roughening pump 机械初步抽空泵 2 mechanical phonograph recorder roughening 机械粗加工 3 mechanical phonograph recorder roughening pump 机械初步抽空泵双语例句 1 Mechanical graining: Mechanically roughening the surface of a metal sheet by means of abrasive powders, sand bursting, etc, for use as an offset plate. 机械磨版：用磨擦粉剂，喷沙等机械方法把金属片的表面造成粗糙，适合为柯式印刷。
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