tripling 三重，三倍
three-fold 三倍，三重 形 triplicate 三重的；三重
网络与数据通信 网络管理与安全 释文 dual-homed host 双宿主机
- OpenMP
- open multi-processing
- open n-ball
- open n-disk
- open neighborhood
- openness
- open nested transaction
- open node sector
- open n-sphere
- open numerical control system
- open oil gathering process
- open orbit
- open ordered set
- open organizational change
- open parallelepipedon
- open parallelotope
- open path Fourier transform infrared spectrometer
- open pipe
- open pit
- open pit allowed to flood level
- open pit blasting
- open pit drainage
- open pit dump
- open-pit dump designs
- open pit dust