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
- elliptical cylindrical cavity
- elliptical extragalactic nebula
- elliptical galaxy
- elliptically contoured distribution
- elliptically contoured distribution family
- elliptically curved oval
- elliptically polarized light
- elliptically polarized radiation
- elliptically polarized wave
- elliptical motion
- elliptical nebula
- elliptical orbit
- elliptic alpha-function
- elliptical polarization
- elliptical projection
- elliptical radio galaxy
- elliptical space
- elliptical subsystem
- elliptical system
- elliptical waveguides
- elliptic argument
- elliptic barrel
- elliptic bearing
- elliptic boundary-value problem
- elliptic capacity