层间增韧的几何效应、裂纹传播路径控制、裂尖屏蔽和颗粒桥联是主要的增韧机理。
Geometrical effect, crack path kinking and deflection, particle bridging and crack shielding are the main toughening mechanisms.
艺术意境即一间审美场：主、客体三层面双向交互作用发生共振效应生成的四维空间形态。
Artistic mental sense, an aesthetic field, is a four-dimension space form generated by the resonant effect via three_layer, two_way interaction between the aesthetic subject and its, object.
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