- 当 已 到达 & # 91 ; StatusFrequency & # 93 ; ( statusfrequency.md ) 时 ， 推送 客户 端 在 队列 中 没有 事件 。

- A push client has no events in the queue when the &#91; StatusFrequency &#93; ( statusfrequency.md ) has been reached .
