系统软件 操作系统 释文 input/output management, I/O management 输入输出管理
- orbit representative
- orbit resonance
- orbitron
- orbit-rotation resonance
- orbit space
- orbit stability
- orbit-stable limit cycle
- orbit-superposition method
- orbit theory
- orbit, trajectory
- orbit transfer
- orbit type
- orcein
- orcelite
- orchard establishment
- orchardgrass rust
- orchard microclimate
- orchard of fruit germplasm resources
- orchard planning
- orchard-planting problem
- orchard problem
- orchard vegetation
- orchard visibility problem
- orchard with sod cultivation
- orchestra