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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             6.30 → 6.60    up    acos=13.4%   cost=220.74   clicks=82
  kw    pista carros electrica          0.60 → 0.30    down  acos=21.3%   cost=446.88   clicks=109

SP Campaign Recommendation - Suggested Products - 03/30/2022 a70a69 / AGM MASTECH - Slot Cars/Racing
  kw    agm mastech                    32.90 → 30.50   down  acos=21.2%   cost=446.16   clicks=609
  kw    pista electrica de carreras    15.20 → 12.80   down  acos=inf     cost=101.40   clicks=18
  kw    agm                            33.20 → 30.80   down  acos=inf     cost=1185.52  clicks=737

20230610_ManalPromotion / Slot car race set精准
  kw    pista de carreras f1            9.80 → 7.40    down  acos=inf     cost=90.61    clicks=12
  kw    agm                            14.30 → 11.90   down  acos=inf     cost=107.95   clicks=171