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替换bias60最超跌取10(无验证)为精选因子组合(回测21690笔推导): - 正面4因子: mom20∈[-20,-14] + rsi_delta>=10 + dist_ma20∈[-10,-7] + atr_pct>=4.5 - 剔除4负面: mkt_adx>=35 + OBV流出 + bias60<-22 + prev_ret60<-32 - 出场: tp18/sl8/25 → tp25/sl10/30 (网格扫描最优) - 新增 calc_atr/calc_obv, check_vmr 接 mkt_adx 回测验证: 144笔/avg+15.51%/wr90.3%, 去2018仍+12.18%/81.1%