The wheel-rail contact geometry relationship is different when different wheel tread shape matches the same rail, which will influence the dynamic performance of the vehicle.

不同的车轮踏面形状与同一钢轨匹配时具有不同的轮轨接触几何关系，影响车辆的动力学性能。

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United, however, will suffer, starting tomorrow against Chelsea and continuing to Wednesday's Old Trafford return with Bayern Munich, matches that could shape their season.

但是明天在英超赛场上曼联会遭遇切尔西的阻击，而周三则会在老特拉福德碰到拜仁慕尼黑，这两场比赛会直接决定曼联本赛季的命运。

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If the message is of type Shape, the first case matches.

如果消息是shape类型的，第一个case会被满足。

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Instead the 25-year-old, who won the season's opening grand slam in 2008, got into shape with matches against male opposition.

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If Spurs can manage to successfully navigate the first four matches they should be in good shape.

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Martinez believes Wigan, who now face successive matches against Liverpool and the two Manchester clubs in the Premier League, are in good shape going into what is sure to be a testing period.

BBC: Roberto Martinez hails 'complete' Wigan after win