固体理论(solid state theory) 固体物理学中从理论上研究固体中微观粒子(电子、原子和离子)的基本运动规律以及它们与宏观性质之间相互关系的一个分支。
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It is proved by fractal theory that the welded state of every micro zone at welded surface is uneven in the formation process of isothermal superplastic solid-state welding joint.
这也从分形理论的角度证明了在超塑性固相焊接头的形成过程中,焊接面各微区的焊合状态是非均匀性的。
The microwave solid state noise diodes are investigated based on the PN junction avalanche multiplication theory with tunneling penetration.
本文以带有隧道穿透的PN结雪崩倍增理论,研究了微波固体噪声二极管。
Research on that metallic melts transforms from liquid to solid state based on heat transfer theory is an important discipline in casting solidification.
研究基于热传输理论的熔融金属从液体转变到固体状态变化过程是铸件凝固研究的重要分支。
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