successive selection

Now, wavelength selection method is one of the key study, the main including Genetic Algorithm ( GA), Uninformative Variable Elimination ( UVE), Successive Projections Algorithm ( SPA) and so on.

波长优化选择方法是现在研究的重点之一，主要有遗传算法（GA）、无信息变量消除方法（UVE）和连续投影算法（SPA）等。

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After successive generations of artificial selection, some good economic and genetic traits are basically stable to offspring, such as faster growth, more adaptability and higher nutritional value, easier to raise and breed, disease resistance and so on.

经过连续多代人工选育，得到生长速度快、适应性强、营养价值高、易养易繁、抗病力强等优良经济性状，且遗传性状基本稳定的后代。

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