理论计算机科学 可计算性与计算复杂性 释文 linear speedup theorem 线性加速定理
- perigynous flower
- perihelic conjunction
- perihelic opposition
- perihelion
- perihelion distance
- perihelion effect
- perihelion motion
- perihelion passage
- perihelion precession
- perihelion precession of Mercury
- perihelion precession of planet
- perihelion precession of planets
- perihelion time
- peri-implant diseases
- peri-implantitis
- peri-implant mucositis
- perijove
- perikaryon
- peril
- perilemma
- perilla fruit
- perilla leaf
- perilune
- perilymph
- perilymph fistula