SS120单柱施工升降机由金属结构、工作机构、电气控制以及安全保护装置等部分组成。

The SS120 column construction lift is composed by metal structure, working mechanism, electrical control and safety protection instrument.

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安全牢固：武汉运动围挡在施工过程中遇硬表基用加长膨胀螺丝固定墙柱，软表基用深坑配重墙柱。

Wuhan strong safety enclosure meets a hard base table with extended expansion screws fixed wall column during the construction process, the pit wall column with soft base table weight.

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目的：探讨髋臼后柱的解剖学结构和螺钉放置的安全角度和范围。

Objective: to investigate the anatomical structures of the posterior column of the acetabulum and to develop a safe path for screw placement into it.

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