{ "stock_code": "600121", "stock_name": "郑州煤电", "market_type": "A", "analysis_date": "2023-12-31", "structure_snapshot": { "structure_type": "downtrend", "ma200_position": "near", "phase": "late", "key_levels": [ {"price": 4.10, "label": "支撑位1(布林带下轨/近期低点)"}, {"price": 4.13, "label": "支撑位2(MA200/当前价格位)"}, {"price": 4.23, "label": "压力位1(MA5)"}, {"price": 4.32, "label": "压力位2(MA20/布林带中轨)"}, {"price": 4.55, "label": "压力位3(布林带上轨)"}, {"pric