The 3-d evolving model of LCCC solder joint shape is based on the minimal energy principle and the solder joint shape theory.
基于最小能量原理和焊点形态理论，建立了LCCC器件焊点三维形态预测模型。
In shape theory, the three-dimensional deformation theory of plate and strip rolling is an important and difficult study content.
板带轧制的三维变形理论是板形理论研究的重点和难点。
In shape theory, the three-dimensional deformation theory of plate and strip rolling is an important and difficult study content.
板带轧制的三维变形理论是板形理论研究的重点和难点。
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