Various approaches have been used to improve the performance of adapted indigenous stock, including cross-breeding and upgrading through back-crossing with improved breeds, and within-line selection.
已有多种方法被用于提高地方良种的性能，包括杂交育种，以及通过与良种的回交和品系内选育进行的品种改良。
The paper improved the coding mode and repaired the radial pattern networks, so breeds out the infeasible solution reasonably, tails off the search space and boosts the procedure's calculating speed.
通过对遗传算法编码方法的改进和对辐射型网络的修复，合理的排除了大量的不可行解，解决了遗传算法计算时间长、搜索空间大的问题，提高了程序的计算速度。
The paper improved the coding mode and repaired the radial pattern networks, so breeds out the infeasible solution reasonably, tails off the search space and boosts the procedure's calculating speed.
通过对遗传算法编码方法的改进和对辐射型网络的修复，合理的排除了大量的不可行解，解决了遗传算法计算时间长、搜索空间大的问题，提高了程序的计算速度。
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