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
- slope erosion
- slope erosion processes
- slope excavation
- slope farmland treatment project
- slope field
- slope filter
- slope function
- slope greening
- slope-intercept form
- slope landform
- slope-length factor
- slope line
- slope management for erosion control
- slope measuring
- slope monitoring
- slope of a curve
- slope of a straight line
- slope of cultivated land
- slope of cutting
- slope of isochron
- slope of repose
- slope protection for pipeline
- slope protection with vegetation
- slope ratio method
- slope retaining