This can be fixed by adjusting the rear channel guide in the door.

这可以通过调整固定后方通道指南的大门。

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The consumer is a rear view mirror, not a guide to the future.

消费者是后视镜，而不是对未来的指南。

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The guide rods are mounted spaced apart on the rear face of the second housing along a sliding direction of the second housing.

导杆沿第二壳体的滑动方向分隔开地安装在第二壳体的背面上。

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Pay particular attention to the jockey wheels (these are small wheels in the chain cage of the rear mech that guide the chain round the sprockets) because they pick up hard-packed dirt from the chain.

BBC: Sport