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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             5.10 → 5.40    up    acos=9.0%    cost=147.63   clicks=57
  kw    pista carros electrica          1.80 → 1.50    down  acos=24.7%   cost=518.88   clicks=126

SP Campaign Recommendation - Suggested Products - 03/30/2022 a70a69 / AGM MASTECH - Slot Cars/Racing
  kw    agm mastech                    34.10 → 33.80   down  acos=27.2%   cost=571.73   clicks=788
  kw    pista electrica de carreras    16.40 → 16.10   down  acos=inf     cost=102.10   clicks=18
  kw    agm                            34.40 → 34.10   down  acos=inf     cost=125.63   clicks=34

20230610_ManalPromotion / Slot car race set精准
  kw    pista de carreras f1           11.00 → 10.70   down  acos=inf     cost=90.61    clicks=12
  kw    agm                            15.50 → 15.20   down  acos=inf     cost=107.95   clicks=171