理论计算机科学 可计算性与计算复杂性 释文 average-case hardness 平均情况困难性
- vegetable quality
- vegetable quality and safety
- vegetable science
- vegetables economic
- vegetable seedling raising
- vegetable sorter
- vegetable sowing
- vegetable tannin extract
- vegetable tanning
- vegetal pole
- vegetarian food only
- vegetarian underground religions
- vegetation
- vegetation bag
- vegetation belt
- vegetation carpet
- vegetation circle
- vegetation classification
- vegetation classification criteria
- vegetation classification method
- vegetation classification principles
- vegetation classification system
- vegetation coverage
- vegetation cover and biological factor
- vegetation ecological climatology