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MX  门槛=20%  门=cost>80  步长 up=0.3 down=0.3  条数=7
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20230610_ManalPromotion / Slot car race set词组
  kw    autopista electrica             5.40 → 5.70    up    acos=10.0%   cost=164.23   clicks=65
  kw    pista carros electrica          1.50 → 1.20    down  acos=23.8%   cost=500.60   clicks=121

SP Campaign Recommendation - Suggested Products - 03/30/2022 a70a69 / AGM MASTECH - Slot Cars/Racing
  kw    agm mastech                    33.80 → 33.50   down  acos=26.2%   cost=551.15   clicks=757
  kw    pista electrica de carreras    16.10 → 15.80   down  acos=inf     cost=103.33   clicks=19
  kw    agm                            34.10 → 33.80   down  acos=inf     cost=392.81   clicks=301

20230610_ManalPromotion / Slot car race set精准
  kw    pista de carreras f1           10.70 → 10.40   down  acos=inf     cost=90.61    clicks=12
  kw    agm                            15.20 → 14.90   down  acos=inf     cost=107.95   clicks=171