非线性模型可以模拟峰值前的硬化部分，但不能很好模拟软化段较陡的降落；
Nonlinear elastic model can stimulate the hardening part before peak value, but the stimulation to softening part is not satisfying.
东部地形复杂，坡度较陡，岛屿众多，海底是褶皱的元古代沉积岩和太古代结晶岩。
East complex terrain, a steep slope, numerous islands, is the fold of the seabed Proterozoic sedimentary rocks and too ancient crystalline rock.
复斜屋顶在四个面上都各有两个斜面，一个较浅的上部斜面和一个较陡的下部斜面。
The mansard roof has two slopes on all four sides, a shallower upper part and a steeper lower part.
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