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ultrasonic vibration drilling
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ultrasonic vibration drilling
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超声辅助切削
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ultrasonic vibration drilling
超声振动制孔
在正常制孔过程中,给制孔刀具施加一定形式的超声频振动的制孔工艺。
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eliquation
ELIRGs
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Elisabeth Antoinette White
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Elisabeth Schwarzkopf
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Elisha Graves Otis
Elisée Reclus
elite
elite accession
elite athlte training management
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Elite Coach Double-Hundred Training Project
elite cultivar propagation of fruit trees
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elite democracy
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Elite Force named “BaiBao Xianbei”
elite guard
elite population
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Elite Sports Reserve Personnel Training Project
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