Configure channels with a disconnect interval so that they can go inactive when there is no activity on the channel after a period of time.

为通道配置断开连接间隔，以便通道上在一段时间后没有活动时，通道能转为非活动状态。

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This shows that the effective time interval of earthquake events is only about 1000 years, and the maximum cycle of seismic activity that we are allowed to infer does not exceed 500 years.

说明迄今的地震事件的有效统计间隔仅仅1000年左右，允许我们能够推断出的最大地震活动周期不会超过500年。

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These methods include: the direct- indirect aftershock method, shock-to-shock seismic activity method and logarithm time interval method.

方法二是震间地震活动法；方法三是对数时间间隔法。

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