A reversal acceleration phenomenon is recognized under the state of continuous extension of the baseline since 1988 . The yearly twisting along the northern segment of Anqiu-Juxian fault is 0.40 mm through calculation and the principal compressive stress axis is oriented at N40 ° W.

经计算认为安丘&莒县断裂北段年 扭动量0.40毫米，主压 应 力轴方向N40°W。

Apply oil to the strand when twisting rope use pre-deformation and after-deformation methods to dispel stress select the best twisting parameter .

成绳时股涂油，用预变形和后变形消除 应 力，选用最佳捻制参数。

Dynamic Measurement and Calculation of Twisting Stress of Crankshaft and Flywheel System in Diesel Type TC 387

TC387型柴油机曲轴飞轮系统 扭转 应 力动态试验与计算

The main problems existed while cementing thermal recovery well for thick oil are casing twisting off deforming and leakage and the best method for solving these problems are preceding stress cementing technique .

稠油热采井采用常规固井技术存在的主要问题是套管的 错断、变形和泄露，而解决该问题的较好方法就是采用 预应力固井技术。