满足传递性的自反关系称为预序关系。
本文在通用试验语义和语法的基础上，着重研究了踪迹预序和观察预序。
On the basis of general testing syntax and semantic, the paper focus on the research of the trace preorder and the observati.
实验结果表明，这些调序及预翻译操作可以显著地提高基于短语的统计机器翻译的英文译文结果的BLEU值。
Experimental results show that the reordering and pre-translation can significantly improve the BLEU values of the English translation by PBSMT.
在预匹配过程中，由于地磁数据的离散性，搜索步长定为一个基本网格单元，并与序贯相似检测原则相结合，这样可快速排除非匹配区，筛选得到精匹配所需要的可行区域。
In pre-matching, the searching strategy defines a gridding unit as a step with SSDA method, so it can quickly eliminate non-matching area and gain feasible area for precise-matching.
在预匹配过程中，由于地磁数据的离散性，搜索步长定为一个基本网格单元，并与序贯相似检测原则相结合，这样可快速排除非匹配区，筛选得到精匹配所需要的可行区域。
In pre-matching, the searching strategy defines a gridding unit as a step with SSDA method, so it can quickly eliminate non-matching area and gain feasible area for precise-matching.
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