理学 归约 释 PSPACE-completeness PSPACE完全性 PSPACE完全性（PSPACE-completeness）刻画了多项式空间PSPACE类中在多项式时间归约下最难的一类问题。
理论计算机科学 可计算性与计算复杂性 释文 PSPACE-completeness PSPACE完全性 理论计算机科学 可计算性与计算复杂性 释文 PSPACE-completeness PSPACE完全性
- vegetation coverage
- vegetation cover and biological factor
- vegetation ecological climatology
- vegetation ecological series
- vegetation ecology
- vegetation evolution
- Vegetation Formation
- Vegetation Formation Group
- vegetation geochemical survey
- vegetation-habitat classification by Shenxiu Jia
- vegetation index
- vegetation investigation
- vegetation map
- Vegetation Map of the People's Republic of China（1︰1000000）
- vegetation mattress
- vegetation measures for soil and water conservation
- Vegetation of China
- vegetation pattern
- vegetation patterns
- vegetation physiognomy
- vegetation primary succession
- vegetation productivity
- vegetation quantitative characteristics
- vegetation regionalization
- vegetation regionalization in China