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.
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.
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.
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.
应用推荐