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。
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.
对多数地区,等震线略具狭长的形状,经验点椭圆模型可以减小点源模型和断层破裂模型的系统偏差。
For most of the regions, isoseismals are of somewhat elongated shape. The empirical point-ellipse model can reduce systematic deviation of point-source and fault-rupture models.
对多数地区,等震线略具狭长的形状,经验点椭圆模型可以减小点源模型和断层破裂模型的系统偏差。
For most of the regions, isoseismals are of somewhat elongated shape. The empirical point-ellipse model can reduce systematic deviation of point-source and fault-rupture models.
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