The reverse nearest neighbor search in dynamic environments is becoming a hot topic, and an efficient space trimming method is the bottleneck of such a search.
动态环境中的反最近邻查询已成为空间查询的研究热点，有效的数据空间削减策略是此类查询的瓶颈。
2
The work process of the trimming die for vertically forming the thin-wall barrels of the shell top part of hot-water shower device was introduced.
汽车覆盖件中，存在着大量的翻边特征，而翻边零件的修边线直接影响到修边模的设计和翻边后零件的质量。
3
The work process of the trimming die for vertically forming the thin-wall barrels of the shell top part of hot-water shower device was introduced.