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    "driver_gas_on": [
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    "driver_steer_pressed_on": [
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    "control_long_active_off": [
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    "cruise_off": [
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    "driver_flags_at_first_record": {
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  "quality": {
    "radar_large_distance_jumps_s": [],
    "radar_target_loss_s": [
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    "video_precontext_s": 10,
    "source_sampling": {
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      "radar": {
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    "alignment": "0.05秒公共网格，向后取最近已记录值；容差为各流采样周期1.6倍，限于0.035至0.5秒；不插值。原始采样统计另算。雷达距离与相对速度汇总仅用目标有效记录。",
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  "visual_review_status": "reviewed",
  "review_note": "自动提取的事实，不代表已经完成画面复核或致因判断。"
}