柱式悬臂起重机多采用环链电动葫芦作为起升机构和运行机构，较少采用钢丝绳电动葫芦和手拉葫芦。

Pillar jib cranes to use more electric chain hoist hoisting mechanism and operating as a body, less use of wire rope electric hoist and chain hoist.

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从结果分析可以认为后柱结构、特别是棘上韧带和棘间韧带对维持脊柱稳定，防止胸腰椎过度屈曲起重要作用。

We concluded that the posterior column structures, especially the supraspinal ligaments and interspinal ligaments, would play an important role in maintaining the stability of the spine.

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八十年代初先后研制成功了定柱式旋臂起重机、壁柱式旋臂起重机，并取得了国家实用新型专利证书。

The early eighties have successfully developed a set of crane column Arm, Arm type cranes, and achieved a national utility model patent.

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