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单词
drawing
释义
drawing
Encyclopedia
工学
体积成形
释
drawing
拉拔
在外加拉力作用下,迫使金属通过模孔,以获得所需形状和尺寸的制品的塑性加工方法。
工学
拉深成形
释
drawing
拉深成形
利用具有一定圆角半径的模具,将平板毛坯或半成品毛坯加工成开口空心件的冲压工序。又称拉延。
理学
拉伸
释
drawing
拉伸
使高聚物中高分子链沿外作用力方向进行取向排列,以改善高聚物结构和力学性能的加工方法。
Physics
drawing
①抽,拉,压延 ②牵引 ③提取 ④回火 ⑤绘图
Mathematics
drawing
抽样,抽取
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information system for long term preservation of electronic records
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