For enriching the database system of special education with ideal retrieval function, the facet classification, post controlled retrieval and hyper chaining techniques are employed.
为了使特殊教育数据库系统具有较为理想的检索功能，本系统采用了分面分类技术、后控检索技术、超链接技术。
The post-processing of image classification is an important procedure in classified mapping.
图像分类后处理是图像分类制图过程中十分重要的一个步骤。
Post evaluation can be conducted in four ways: sequence, classification, comparison with essential factors and grading of them.
岗位评价的实施分为序列法、分类法、要素比较法、要素评分法等四种方法。
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