工学 食品安全 释 food safety objective；FSO 食品安全目标 食品中的某种危害可提供或促进适当保护水平（appropriate level of protection，ALOP）的最大允许频率或浓度。食品安全目标的概念仅限于食品安全，不涉及质量。
网络与数据通信 无线网络 释文 free space optics, FSO 自由空间光束
- subloop
- subluminal speed
- subluminous star
- sublunar point
- Subluxation of the radial head
- submairne gamma-ray spectrometer
- submajorization
- submandibular gland
- submanifold
- submanifold geometry
- submanifold tangent space
- submarine active volcano
- submarine anti-ship missile
- submarine canyon
- submarine collapse
- submarine control network
- submarine control point
- submarine cruise missile
- submarine disaster geological survey
- submarine earthquake
- submarine engineering
- submarine fan
- submarine fan facies
- submarine fault zone,submarine fracture zone
- submarine fiber cable