This partial order structure can be extended to any concept learning problem, and therefore, it plays an instructive role in all algorithms for concept learning.
这种偏序结构可以推广到任何概念学习的问题中，从而对整个概念学习的算法有着重要的指导意义。
The two algorithms for concept learning efficiently complete the whole search through the hypothesis space based on a very useful structure: the general-to-specific partial order.
对于这两种算法来说，都是利用一般到特殊序的偏序结构来完成整个搜索过程。
Meanwhile partial structure of hydrogen gas compressor was also modified in order to ensure its performance and increase its running stability.
同时，改造压缩机的局部结构，保证了压缩机性能，增加了运转稳定性。
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