With the impact and vibration of the crane, it may cause the rail installation loose, the connector fall off, deformation, crack, precision index super difference.
随着起重机运行时产生的冲击和振动，可能引起轨道安装的松动、连接件脱落、变形、裂纹、精度指标超差。
2
If table index shafts are loose, tighten mounting bolts.
如果台面索引轴松动，拧紧固定螺栓。
3
Patent pools could be divided into loose type and close type according to the values of technical cohesion index.