理学 系统软件 释 system software 系统软件 计算机系统中提供系统级平台服务功能的软件集合，其处于整个计算机软件层次中的底层，最靠近硬件，负责控制计算机和外部设备，向上层软件提供某一类共性的功能支持，支持应用软件的开发和运行。
system software 系统软件
系统软件 释文 system software 系统软件
- pillar robbing
- Pillars of Creation
- Pillars of Society
- pillar stitch structure
- pillbox antenna
- pillow
- Pillow Book
- pillowcase
- pillow lava
- pillow structure
- pillow stuffing
- pillow towel
- pillow with louts pattern and black flowers painted in white
- pills
- pilocarpine
- pilose antler
- pilot
- pilotage
- pilot and engineer training system of aircraft materiel
- pilot atlas
- pilot bit
- pilot certificate training
- pilot demonstration area of socialism with Chinese characteristics
- piloted
- pilot experiment