KN abbr. knowledge 知识; kilogram net weight 千克净重; Kongeriket Norge (Kingdom of Norway) 挪威王国; kynurenine 犬尿氨酸; [网络] 牵引力; 公称压力; 负荷; [例句]B. A roller force more than 60 kN.b.辊子力大于60千牛顿。