介绍了合金的初生小晶面相的形核和生长机制，不同变质剂对其形态的作用机理。
The nucleation and growth mechanism and the effect of the different modificators on the morphology of primary faced crystal are introduced.
本文对目前流行的各种方法进行了归类，主要思想有：边缘保持、矢量量化、小波变换、插值核、分形技术以及边缘模型。
And this paper classifies the popular methods, the main ideas are as follows: edge preserving, vector quantization, wavelet transform, interpolation kernel, Fractal technology and edge model.
对筒形基础海洋平台的静稳性进行了理论分析，提出了平台在大、小倾角两种情况下的稳性分析方法。
The static stability of offshore platform with bucket foundation is analyzed theoretically, and stability analyzed methods of the platform with small and large Angle of inclination are discussed.
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