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
- carved lacquer
- carved lacquerware
- Carved Motifs High Jade Cong
- carved operatic lunar new year paintings of Jiucheng Village, Wuqiang County
- Carved Polychrome Lacquer Food Box with Chinese Pearleaf Crabapple and Orioles Made in the Xuande Reign
- Carved Polychrome Lacquer Mirror-box of the Southern Song Dynasty
- Carved Red Lacquer Dish with Cape Jasmine Design Made by Zhang Cheng of the Yuan Dynasty
- Carved Red Lacquer Throne Screen in the Qing Dynasty
- carved stone
- Carved stone at the Honglu Well
- Carver crater
- carving and filling in
- carvings of dramatic scenes of the Song and Yuan Dynasties
- carvone
- car wear set
- Cary Grant
- Caryl Churchill
- Caryl Phillips
- caryocerite
- caryogram
- caryolanol
- caryophyllane
- caryophyllene alcohol
- caryopsis
- caryotype