理学 协同社交系统 释 open source 开源软件 在软件发行时附上允许用户更改、自由散布或衍生著作的源代码，即授权可以公开使用源代码的软件。
软件工程 释文 open source software 开源软件
- overspeed governor of lift
- overspeed protection
- over speed test for steam turbine
- overspill principle
- overstability
- overstable mode
- oversteepening
- over-strain
- overstrain
- overstrain strangury
- overstress model
- overstrike
- oversynchronous
- overtaking collision
- overtaking miracle of Japan
- overt aspiration
- overtemperature
- overtemperature protection
- overtempering
- overtension
- over-the-counter market
- Over the East Wall
- over-the-horizon radar
- over the shoulder
- over-the-shoulder launch