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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             6.00 → 6.30    up    acos=12.6%   cost=207.33   clicks=79
  kw    pista carros electrica          0.90 → 0.60    down  acos=21.9%   cost=460.46   clicks=111

SP Campaign Recommendation - Suggested Products - 03/30/2022 a70a69 / AGM MASTECH - Slot Cars/Racing
  kw    agm mastech                    33.20 → 32.90   down  acos=22.7%   cost=477.06   clicks=660
  kw    pista electrica de carreras    15.50 → 15.20   down  acos=inf     cost=101.40   clicks=18
  kw    agm                            33.50 → 33.20   down  acos=inf     cost=948.60   clicks=591

20230610_ManalPromotion / Slot car race set精准
  kw    pista de carreras f1           10.10 → 9.80    down  acos=inf     cost=90.61    clicks=12
  kw    agm                            14.60 → 14.30   down  acos=inf     cost=107.95   clicks=171