地面兵装板块12月22日涨0.46%，国科军工领涨，主力资金净流出1.96亿元

Group 1 - The ground equipment sector increased by 0.46% compared to the previous trading day, with Guoke Military Industry leading the gains [1] - The Shanghai Composite Index closed at 3917.36, up by 0.69%, while the Shenzhen Component Index closed at 13332.73, up by 1.47% [1] - A table detailing the individual stock performance within the ground equipment sector was provided [1] Group 2 - In terms of capital flow, the ground equipment sector experienced a net outflow of 196 million yuan from main funds, while retail investors saw a net inflow of 285 million yuan [2] - The net outflow from speculative funds amounted to 89.22 million yuan [2] - A table showing the capital flow for individual stocks in the ground equipment sector was included [2]