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袋形波
释义
袋形波
Encyclopedia
工学
冷弯成形
释
pouched wave
袋形波
在宽幅断面金属板带材冷弯成形时,断面中心部分出现的凹凸状鼓胀(袋状鼓包)现象。又称中心波、油包。是一种典型的冷弯成形形状缺陷。
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Imperial Examination Systems in Qing Dynasty
imperial examination to select imperial edict drafters
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imperial gardens in Beijing, Qing Dynasty
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Imperial Glossary of the Manchu Language
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Imperial Library Catalog of the Four Branches of Literature of the Kaiyuan Era of Tang
Imperial Library Catalog of the Jin Dynasty
Imperial Library Catalog of the Tang Dynasty
Imperially Commissioned Manchu Rituals for Sacrificing to Deities and to Heaven
imperial mandate
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