理学 计算机存储部件 释 phase-change memory，PCM 相变存储器 一种由硫族化合物材料构成的新型非易失存储器（non-volatile memory，NVM），它利用材料可逆转的物理状态变化来存储信息，具有非易失、工艺尺寸小、存储密度高、寿命长、读写速度快、功耗低、抗辐射干扰等优点，是未来最有可能取代DRAM的非易失性存储器之一。
计算机硬件 存储设备 释文 phase change random access memory, PRAM, PCM 相变存储器
- gas pseudo pressure
- gas purification method
- gas purification process
- gas quality standard for transmission pipeline
- gas radiative properties
- gas reaction system
- gas recirculation fan
- gas recovery by liquid drainage
- gas regulator station
- gas reservoir
- gas reservoir development pattern
- gas reservoir engineering
- gas reservoir（well） allocation
- gas retention age
- gas retort carbon
- gas-rich asteroid
- gas-rich meteorite
- gas-rich satellite
- gas safety device
- gas scintillation proportional counter
- gas scintillation proportional detector
- gas scintillator
- gas scrubber
- gas seepage
- gas self-inducing bioreactor