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化学加工
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化学加工
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工学
化学加工
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chemical machining
化学加工
利用酸/碱/盐等化学溶液对金属产生化学反应使金属腐蚀溶解,从而改变工件尺寸和形状的一种表面加工方法。
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homotopy-equivalent manifold
homotopy-equivalent space
homotopy exact sequence
homotopy excision
homotopy excision homomorphism
homotopy excision theorem
homotopy extension
homotopy extension property
homotopy extension theorem
homotopy fiber
homotopy functor
homotopy group
homotopy group functor
homotopy group of a triad
homotopy group of CW complexes
homotopy group of spheres
homotopy identity
homotopy invariance
homotopy invariant
homotopy invariant functor
homotopy inverse
homotopy inverse mapping
homotopy length
homotopy lifting
homotopy lifting property
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