For communication between a WLAN station and an access point, frame acknowledgments decrease the bandwidth, as do the number of other stations using the same access point.

对于WLAN工作站与接入点之间的通信，帧确认会降低带宽，使用同一接入点的其他工作站的数量也会带来同样影响。

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Based on the frame of safety evaluation system in foundation excavation of subway stations, it constructs the target system, and analyzes the appraisal factor.

依据地铁车站基坑工程安全评价体系的基本框架，构建地铁车站基坑工程的指标体系，并对评价因素进行分析。

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Frame Synchronizer is one of the key devices in satellite ground receiving stations.

格式化同步器是卫星地面站的关键设备之一。

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