最后，采用案例研究验证理论推演。
Finally, we use of case studies to verify theory development.
本文从实际大地介质出发，井结合断裂理论推演出了古登堡公式。
Starting from real geo-medium and using fracture theory, Gutenberg-Richter formula is calculated.
进而从小说中人物形象的“心口错位”的理论推演出真善美错位的理论，使错位理论走向成熟。
And then, he deduced a mismatch theory in truth, goodness and beauty from the theory of the mismatch between mind and tongue of literary image, making the theory to be mature.
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