... 起重机悬臂长度 boom length 起重机悬臂伸距 crane radius; span of crane 起重机悬臂提升索 boom lift cable ...
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the span of crane 吊车跨度
To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.
安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。
The points of hoisting design of semi-span gantry crane are analyzed. The construction schemes, methods and safety of T-shaped beam hoisting are introduced.
分析了半跨龙门吊的设计安装要点，着重介绍了T梁的吊装施工组织方案、施工方法及安全技术保证措施。
General gantry crane: the most extensive use of this crane can carry a variety of items and bulk materials into, from the weight of 100 tons, a span of 4 to 35 meters.
普通龙门起重机：这种起重机用途最广泛，可以搬运各种成件物品和散状物料，起重量在100吨以下，跨度为4 ~ 35米。
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