航海装备板块12月11日跌1.95%，中船防务领跌，主力资金净流出8.27亿元

Group 1 - The maritime equipment sector experienced a decline of 1.95% on December 11, with China Shipbuilding Defense leading the drop [1] - The Shanghai Composite Index closed at 3873.32, down 0.7%, while the Shenzhen Component Index closed at 13147.39, down 1.27% [1] - A detailed table of individual stock performance within the maritime equipment sector is provided [1] Group 2 - The maritime equipment sector saw a net outflow of 827 million yuan from major funds, while retail investors contributed a net inflow of 775 million yuan [2] - Speculative funds recorded a net inflow of approximately 52.7 million yuan [2] - A detailed table of fund flow for individual stocks in the maritime equipment sector is included [2]