Lucene supports field search. You can specify the fields that a query will be executed on.
Lucene支持域搜索，你可以指定一次查询是在哪些域(Field)上进行。
Index the content into Lucene, being sure to store term vectors for the field you want to generate vectors from.
将内容索引编入Lucene，确保存储相关字段(用于生成矢量的字段)的term矢量。
A field is made up of the actual content to be indexed or stored plus metadata telling Lucene how to handle that content and a boost value indicating that field's importance.
字段由需要索引和储存的实际内容、告诉Lucene如何处理该内容的元数据和表明该字段的重要性的增强值组成。
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