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。

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.

youdao

极限制造是指与常规加工参数及加工精度相比的各种极限加工和超精密加工。

Extreme manufacturing covers various extreme machining and ultra precise machining in comparison to conventional machining parameters and accuracy.

youdao

结果表明，模糊模型参考学习控制具有响应快的优点，同时具有与PI控制同样高的稳态精度，但超调量比PI控制稍大。

The result indicates that the fuzzy model reference learning control has quicker dynamic response and the same steady accuracy as PI control, but its overshoot is slightly larger.

youdao