残余应力及装夹应力容易使刚性差的薄壁件引起较大的加工变形，而传统工艺难以使其达到精度要求。
But because of their poor rigidity, it is easy to bring machining deformation caused by the existence of the residual stress and the fixing stress.
对于铝合金检具变形引起的尺寸不稳定，给予规范的热处理和粘接装配，使发动机缸体用检具本体变形得到控制。
The dimension instability is caused by aluminium alloy deformation. The methods such as heat treatment and assembly to control the inspection device deformation are put forward.
构造应力场引起岩石变形，并使孔隙流体压力发生变化，形成异常流体压力。
Tectonic stress can cause the deformation of rocks as well as the change of fluid pressure in the pore of rocks forming anomaly tectonic fluid pressure.
分析表明：该管线的变形失效是在加套管过程中工艺安排不当所致，在施工过程的试压期间引起了内管的外压失稳，使内管产生永久的变形。
The impact of some key construction links on destabilization of the external pressure of the inner pipes was analyzed and verified in the course of pope-line rebuilding.
分析表明：该管线的变形失效是在加套管过程中工艺安排不当所致，在施工过程的试压期间引起了内管的外压失稳，使内管产生永久的变形。
The impact of some key construction links on destabilization of the external pressure of the inner pipes was analyzed and verified in the course of pope-line rebuilding.
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