spatial date的用法和樣例：
例句
- Data of SWEM include spatial data and table data.
水土保持監測數據根據數據格式劃分，可分為空間數據和表格數據。 - It has been recognized in the past that the traditional Database Management Systems cannot handle efficiently spatial data in mutil dimensional space.
空間檢索技術(shù)是有效地管理和操縱空間數據的一種必要手段。
