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
- jade identification
- Jade-inlayed Lacquered Coffins from Tombs of Marquises of Western Han Dynasty
- jadeite
- jadeite Chinese cabbage
- jadeite of the Qing Dynasty
- Jade Key to the Secluded Chamber
- jade knives from Erlitou Culture
- Jade Kui of the Liao Dynasty
- Jade Lion Pendant
- Jade Makara of the Liao Dynasty
- Jade Mine at Mazongshan
- Jade Mirror of the Four Unknowns
- Jade Mythical Creatures at Wei Mausoleum in the Western Han Dynasty
- Jade of Bian He
- Jade of Ci Poetry
- jade ornaments
- jade pendant with design of man kneeling
- Jade Person From Niuheliang Site
- jade persons of Lingjiatan Culture
- jade phoenix
- Jade Phoenix from Niuheliang Site
- jade pill bottle in the Han Dynasty
- jade pillow of the Han Dynasty
- jade plaque and charms inthe Wetern Zhou Dynasty
- Jade Plaque from Lingjiatan Site