“ultrasonic vibration drilling”的概念、定义、翻译、参考文献-科学参考

单词	ultrasonic vibration drilling
释义	ultrasonic vibration drilling Encyclopedia 工学超声辅助切削释 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。
随便看	cobordant structures cobordism cobordism class cobordism group cobordism invariant cobordism of complexes cobordism of knots cobordism of links cobordism of manifolds cobordism ring cobordism theory coboundary coboundary group coboundary homomorphism coboundary mapping coboundary operator cobounded cobounded subset cobounded subspace COBRA cobra cobrotoxin cobweb equation cobweb plot cobweb theory of agricultural products price

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