说明本索引主题选自《水利水电科学技术主题词典》,同时参考了《汉语主题词表》,按主题汉语拼音顺序排列。列出的每一主题都有相关的文献,为了便于读者查找,有些主题下的文献集中于其上位主题之下,该主题下采用参照系统指明对应的上位主题,不再列出文献条目。每一主题下的文献按其出现的期页号顺序排列。 Explanation The subject of this index is selected from the “Thesaurus of Science and Technology of Water Conservancy and Hydropower”, and refers to the “Thesaurus of Chinese”, arranged in the order of thematic Chinese pinyin. For each of the listed topics, there are related articles. For the sake of readers’ search, the literature under some topics is focused on the top topics under which reference systems indicate the corresponding topical topics and no longer lists the entries. The documents under each topic are listed in the order in which they appear.