说明 本索引主题主要选自《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文献,为便于读者查找,有些主题下的文献集中于其上位主题或该文献相关的其它主题之下,采用参照系统指引查找路径,该主题之下不再列出文献条目。每一主题下的文献按其出现的期页号顺序排列。 The main theme of this index is selected from the “Water conservancy and Hydropower Science and Technology Thesaurus”, at the same time with reference to the “Chinese Thesaurus”, according to the order of thematic pinyin. For each of the listed topics, there are relevant articles. For the convenience of readers, the literature under some topics focuses on their superordinate topic or other topics related to this document. The reference system is used to guide the search path, and the topic is no longer listed Out of literature entries. The documents under each topic are listed in the order in which they appear.