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MX  门槛=20%  门=cost>80  步长 up=0.3 down=0.3  条数=4
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20230610_ManalPromotion / Slot car race set词组
  kw    pista de carritos               0.33 → 0.36    up    acos=0.0%    cost=0.13     clicks=1
  kw    autopista electrica             9.60 → 9.90    up    acos=16.1%   cost=504.86   clicks=169

SP Campaign Recommendation - Suggested Products - 03/30/2022 a70a69 / AGM MASTECH - Slot Cars/Racing
  kw    pista electrica de carreras     3.32 → 3.62    up    acos=8.1%    cost=169.39   clicks=54
  kw    agm                             0.98 → 0.69    down  acos=87.5%   cost=1891.29  clicks=1119

[MX] 过暗闸拦截 2 条（bid 已低于自均 CPC 的 1/3，再降也拿不到量，停止降价）：
  kw    agm mastech                  bid=0.5    自均CPC=2.757   比值=1/5.5  acos=inf     SP Campaign Recommendation / AGM MASTECH 
  kw    pista carros electrica       bid=0.7    自均CPC=4.017   比值=1/5.7  acos=inf     20230610_ManalPromotion / Slot car rac