"16" is the number of survivors from WTC South's point of impact. "1776" is the number of feet high the Freedom Tower memorial will be.

16“是从世贸中心南楼撞击区幸存下来的人数，”1776“将是自由塔纪念碑的英尺高度。”

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During cantilever construction of CCTV main building, high frequency, high precision and multi-point dynamic monitoring is used in tower crane displacement installation and usage.

CCTV主楼悬臂施工阶段，对塔式起重机在移位安装至悬臂部位过程中和使用状态下进行高频次、高精度、多点位动态监测。

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