Referencing the mature and efficient relational database query techniques, and to take the strategyspace for time.
借鉴关系数据库成熟高效的查询技术，并采取以空间换时间的策略。
2
My ego tells me that as a capable NASA executive I am confident of the future direction and strategy of the nation's space program.
我的自我意识告诉我，作为一个称职的美国航空航天局执行官，我对国家太空计划的未来方向和战略充满信心。
3
Notice how very little effort was required to update the model following this strategy, although the obvious problem of wasted space in the database has increased.