position preserving

• 参考点

position preserving的用法和样例：

例句

1. Secondly, the candidate with the highest weight is proposed as the antecedent according to the limited knowledge including the part-of-speech, semantics and position.
   在句法分析基础上，以知网为常识库，结合有限知识识别空间表达式以及恢复方位参考点。