应力指数法和疲劳强度减弱系数法是进行疲劳容器设计的重要方法。
Stress index method and fatigue strength weakened coefficient method are important methods for designing fatigue vessel.
在套管的强度方面，分析了水泥坏、射孔、非均匀载荷等套管强度的影响，提出了套管强度减弱系数的概念。
In strength of casing, based on analyzing the influences made by cementing, perforating and non-uniform, the concept of decrease factor of casing strength.
分析结果表明：加捻纤维束构成的复合材料，由于纤维适当加捻，可以大大减弱纤维与基体各具不同的热膨胀系数而产生的固化残余应力。
The analytical results show that the curing residual stresses of the twisted fiber composites in which there are different coefficient of thermal expansion due to curing can be decreased greatly.
时间系数的突变分析表明纬向风在1967年发生了一次较明显的减弱突变；
Mutation analysis of the time coefficient shows that there was a pronounced weakening mutation of the zonal wind in 1967.
与已有结果比较，新判据减弱了对系数矩阵的限制，扩大了稳定参数域。
Compared with the existing ones, the new criteria relax the limitation on coefficient matrix and give larger stable parameter domains.
与已有结果比较，新判据减弱了对系数矩阵的限制，扩大了稳定参数域。
Compared with the existing ones, the new criteria relax the limitation on coefficient matrix and give larger stable parameter domains.
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