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超硬磨料磨具
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superabrasives
超硬磨料磨具
用结合剂将人造金刚石或立方氮化硼超硬磨料结合在一起制成的定形或不定形磨具。简称超硬磨具。主要用于磨削、研磨、抛光、钻切、切削加工。
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Ancient Cities of Chengdu Plain
ancient city
Ancient City at Yangdi
Ancient City of Damascus
Ancient City of Florence
ancient city of Ife
ancient city of Lamu
Ancient City of Pingyao World Culture Heritage
Ancient City of Zeng State
Ancient City Site at Luxian
Ancient City Wall at Yuzhou
Ancient City Wall at Zhaoqing
ancient clerical script
ancient color
ancient constitution
ancient construction technology
ancient cutting technology
ancient cypress group in Qufu
ancient cypress in Guang'an City
Ancient Cypress in Stalagmite Mountain, Qionglai
ancient dam of the Yellow River
ancient dance words
Ancient Delhi
ancient DNA study
ancient dramatic stage in Ladong Village, Liping County
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